Multiple basal infusion rates in open-loop insulin delivery systems: is there a metabolic benefit?

ABSTRACT Objective: To evaluate glycemic control according to the number of daily basal rates (BRs) in type 1 diabetes patients using continuous subcutaneous insulin infusion (CSII). Subjects and methods: Cross-sectional study of patients treated with an open-loop CSII for at least 6 months and using a flash glucose monitoring system. Patients were divided into 2 groups: group 1 (G1) and group 2 (G2), with ≤4 and >4 BRs/24h, respectively. The groups were compared regarding HbA1c, time in range (TIR), time above range (TAR), time below range (TBR), glucose management indicator (GMI), glucose variability and data related to hypoglycemia. Regression models were performed. Results: The study included 99 patients (n = 55 in G1; n = 44 in G2). Median (Interquartile range) overall age was 30 (17) years, with 19.5 (48) and 51 (77) months of CSII use, respectively. The median number of different BRs was 3 (2) for G1 and 6 (2) for G2. There were no differences concerning age, sex, educational stage, weight, and insulin analog used. G2 had longer disease duration, longer CSII use, and higher total basal daily dose/kg. No significant differences regarding HbA1c, median glucose, GMI, TIR, TAR, and CV were found. G2 patients had more hypoglycemia, more asymptomatic hypoglycemia, and higher TBR. After adjusting for potential confounders, G1 maintained a lower risk of asymptomatic hypoglycemia. Conclusion: Programming open-loop CSII devices with more than 4 BRs does not improve metabolic control. Additionally, it seems to be a risk factor for hypoglycemia and was an independent predictor for asymptomatic hypoglycemia.

First occurrence of feline sporotrichosis in a metropolitan area of Central-West Brazil

ABSTRACT Sporotrichosis is a neglected mycosis that affects human and animal hosts, including domestic cats. In Brazil, its most frequently diagnosed etiological agent is Sporothrix brasiliensis. Zoonotic transmission of S. brasiliensis occurs via direct contact between an infected cat and a susceptible human host. Notification of confirmed cases of feline sporotrichosis is not mandatory in Brazil. The metropolitan area of Goiania city can be considered a silent area for the occurrence of feline sporotrichosis. In this context, voluntary reporting of feline sporotrichosis cases is recommended for all healthcare professionals. This study aimed to report the first occurrence of S. brasiliensis in a cat from the metropolitan area of Goiania city. Cytopathology, mycology, thermal dimorphism and calmodulin gene amplification tests were performed. The mycological and molecular biological diagnoses corresponded to S. brasiliensis. The etiological agent of zoonotic sporotrichosis was detected in the metropolitan area of Goiania city, and therefore there is a risk of the emergence of new cases of cats infected with S. brasiliensis and the occurrence of zoonotic transmission of this fungus.

Efecto de la técnica de la tos durante la inyección subcutánea de heparina sobre la severidad del dolor y la satisfacción individual / Effect of the coughing technique during subcutaneous heparin injection on pain severity and individual satisfaction / Efeito da técnica de tosse durante injeção subcutânea de heparina na intensidade da dor e satisfação individual

Objetivo: examinar el efecto de la técnica de tos de mediana intensidad durante la inyección subcutánea de heparina de bajo peso molecular sobre la severidad del dolor y la satisfacción individual en pacientes de cirugía general. Método: estudio prospectivo, cuasi experimental, que incluyó a 100 pacientes a los que se les prescribió una inyección subcutánea de heparina de bajo peso molecular una vez cada 24 horas. Cada paciente recibió dos inyecciones por el mismo investigador utilizando técnica de inyección estándar con técnica de tos de intensidad media y solo técnica de inyección estándar. Resultados: hubo una diferencia estadísticamente significativa entre las puntuaciones medias de los pacientes sobre la intensidad del dolor y los niveles de satisfacción después de las inyecciones administradas por las dos técnicas (p= 0,000). Además, se encontró que el género afectó la severidad del dolor relacionado con la inyección, pero no afectó el nivel de satisfacción individual. Conclusión: se encontró que la técnica de tos de intensidad media reduce la severidad del dolor y aumenta la satisfacción del paciente de cirugía general que reciben inyecciones subcutáneas de heparina de bajo peso molecular. Registro del ensayo: NCT05681338.

Objective: to examine the effect of the medium intensity coughing technique during subcutaneous low molecular weight heparin injection on pain severity and individual satisfaction in general surgery patients. Method: the prospective, quasi-experimental study included 100 patients who had been prescribed a subcutaneous low molecular weight heparin injection once in 24 hours. Each patient received two injections by the same researcher, one using the standard injection technique with medium intensity coughing technique and the other only the standard injection technique. Results: there was a statistically significant difference between patients' mean scores on pain severity and satisfaction levels after injections administered by the two techniques (p= 0.000). Also, it was found that gender affected pain severity relating to the injection but did not affect the level of individual satisfaction. Conclusion: the medium intensity coughing technique was found to reduce pain severity and increase patient satisfaction in general surgery patients receiving subcutaneous low molecular weight heparin injections. Trial registration: NCT05681338.

Objetivo: examinar o efeito da técnica de tosse de média intensidade durante injeção subcutânea de heparina de baixo peso molecular na intensidade da dor e satisfação individual em pacientes submetidos à cirurgia geral. Método: estudo prospetivo, quasi experimental que incluiu 100 pacientes que haviam recebido uma injeção subcutânea de heparina de baixo peso molecular em 24 horas. Cada paciente recebeu duas injeções pelo mesmo pesquisador usando a técnica de injeção padrão com técnica de tosse de média intensidade e apenas técnica de injeção padrão. Resultados: houve diferença estatisticamente significativa entre as pontuações médias dos pacientes quanto à gravidade da dor e níveis de satisfação após as injeções administradas pelas duas técnicas (p = 0,000). Além disso, verificou-se que o sexo do paciente afetou a intensidade da dor relacionada à injeção, mas não afetou o nível de satisfação individual. Conclusão: a técnica de tosse de média intensidade reduz a intensidade da dor e aumenta a satisfação de pacientes submetidos à cirurgia geral recebendo injeções subcutâneas de heparina de baixo peso molecular. Registro do ensaio clínico: NCT05681338.

Desfibrilador subcutáneo. Primeros casos en el Instituto Nacional de Cardiología, incluyendo dos pacientes pediátricos / Use of subcutaneous cardioverter-defibrillator. First cases reported from National Institute of Cardiology Ignacio Chávez-Mexico

Resumen Introducción: El desfibrilador automático implantable (DAI) transvenoso es el tratamiento de elección para la prevención de muerte súbita (MS) cardiaca por arritmias ventriculares malignas. Su uso se puede ver limitado cuando existe infección del sistema de estimulación o en población pediátrica donde representa un reto por diversas razones, incluyendo: las mínimas dimensiones del sistema venoso de los niños, la longitud de los electrodos, el tamaño del generador, así como por la complejidad anatómica en casos de cardiopatía congénita asociada. Objetivo: El presente artículo tiene por objetivo presentar la primera serie de casos de pacientes mexicanos a los cuales se les implantó un DAI subcutáneo (DAI-SC) como terapia para la prevención de MS. Métodos: Se presentan los cuatro primeros casos que fueron implantados en el Instituto Nacional de Cardiología Ignacio Chávez con un DAI-SC (Emblem, Boston Scientific, EE.UU.), tres de ellos eran pacientes pediátricos, incluyendo el primer implante de este tipo de dispositivo en un paciente pediátrico en América Latina. Las técnicas de tres y dos incisiones fueron empleadas bajo anestesia general. Resultados: Se realizó el implante exitoso con técnica de tres incisiones en los dos primeros casos y con técnica de dos incisiones en los dos últimos casos. Se corroboró el adecuado funcionamiento del dispositivo en sala, con la verificación de terapia apropiada (65 J) de la fibrilación ventricular inducida mediante estimulación a 50 Hz. No hubo complicaciones inmediatas. Un paciente presentó descargas apropiadas a los dos meses del implante. En el seguimiento, un niño desarrolló erosión de la piel a nivel de la curva del electrodo en el esternón, sin datos de infección. En quirófano se resecó la piel dañada, se retiró el barril y la seda de fijación, se realizó lavado quirúrgico y se volvió a cerrar la piel, logrando así evitar el retiro del sistema. Conclusiones: El DAI-SC es una terapia alternativa al DAI endovenoso y puede ser considerado de primera elección en aquellos casos que no requieran de estimulación ventricular, incluyendo pacientes pediátricos. Pueden ocurrir complicaciones cutáneas, pero no representan una amenaza como las complicaciones venosas de los DAI convencionales.

Abstract Introduction: The transvenous implantable cardioverter defibrillator (ICD) is the treatment of choice for the prevention of sudden cardiac death (SCD). Its use could be restricted when device-related infections occurs or in the pediatric population. In the later, an ICD represents a challenge, due to the minimal dimensions of the venous system in children, the length of the electrodes, the size of the generator, as well as the anatomical complexity in cases with associated congenital heart disease. Objective: This article presents the first Mexican patients with a subcutaneous ICD (SC-ICD) implant as a therapy for the prevention of SCD. Methods: The first four cases were implanted at the Ignacio Chávez National Institute of Cardiology with a SC-ICD (Emblem, Boston Scientific, USA), three of them were pediatric patients, including the first implant of this type of device in a pediatric patient in Latin America. The 3-incision and 2-incision techniques were used under general anesthesia. Results: A successful implantation was obtained with the 3-incision technique in the first 2 cases and the last 2 with the 2-incision technique. Proper functioning of the device was corroborated in the operating room with proof of appropriate therapy (65 J) for ventricular fibrillation induced with 50 Hz stimulation. No immediate complications were observed. One patient had appropriate shocks two months after the implant. During follow-up, one child developed skin erosion at the level of the curve of the electrode on the sternum, with no signs of infection. In the operating room, the damaged skin was resected, the barrel and the fixation silk were removed, surgical lavage was performed, and the skin was closed again, thus avoiding removal of the system. Conclusions: The SC-ICD is an alternative therapy to the transvenous ICD. It can be considered first choice in subjects who do not require ventricular pacing, including pediatric patients. Skin complications can occur but do not pose a threat as venous complications of conventional ICDs.

Neumorraquis y neumomediastino espontáneo asociado a crisis asmática en el adulto

Introducción: la forma más frecuente del síndrome de fuga de aire en la crisis asmática es el neumomediastino, siendo habitualmente de curso benigno. La neumorraquis es una complicación poco descrita en la literatura. Presentamos el caso clínico de un paciente de 35 años, portador de asma intermitente, y que ingresa a terapia intensiva por crisis bronco obstructiva severa, enfisema subcutáneo cervical y cara anterior de tórax. La tomografía de tórax demostró neumomediastino extenso y neumorraquis. No se documentó neumotórax ni compromiso hemodinámico por la crisis. Presentó evolución satisfactoria con ventilación mecánica invasiva, broncodilatadores y corticoides sistémicos.

A case report: Pneumomediastinum is the most common form of air leak syndrome in asthmatic crisis and is usually benign in nature. Pneumorrhachis is a complication that is rarely described in the literature. We present the clinical case of a 35-year-old patient with intermittent asthma who was admitted to the Intensive Care Unit due to a severe bronchoobstructive crisis, cervical subcutaneous emphysema, and anterior chest wall emphysema. Chest computed tomography revealed extensive pneumomediastinum and pneumorrhachis Pneumothorax or hemodynamic compromise due to the crisis was not documented. The patient showed a satisfactory outcome with invasive mechanical ventilation, bronchodilators, and systemic corticosteroids.

Relato de caso: O pneumomediastino é a forma mais comum de síndrome de presença de ar no mediastino em crises de asma, geralmente com curso benigno. A pneumorráquis é uma complicação raramente descrita na literatura. Apresentamos o caso clínico de um paciente de 35 anos, com asma intermitente, admitido na Unidade de Cuidados Intensivos por crise bronco-obstrutiva grave, enfisema subcutâneo cervical e de parede torácica anterior. A tomografia de tórax mostrou extenso pneumomediastino e pneumorraque. Não se observou pneumotórax ou comprometimento hemodinâmico devido à crise. Apresentou evolução satisfatória com ventilação mecânica invasiva, broncodilatadores e corticoides sistêmicos.

Tissue repair capacity of bioceramic endodontic sealers in rat subcutaneous tissue

Abstract This study aimed to evaluate the tissue repair capacity of four bioceramic endodontic sealers by quantifying type I and III collagen fibers. The following sealers were tested: EndoSequence BC Sealer (Brasseler, Brasseler, Savannah, USA), Bio C Sealer (Angelus, Londrina, Brazil), Bioroot RCS (Septodont, Santa Catarina, Brazil), and Sealer Plus BC (MKLife, Porto Alegre, Brazil). Polyethylene tubes 1.5 mm in diameter and 1 cm in length containing the endodontic sealers were implanted in the subcutaneous tissue of five rats (Rattus norvegicus albinus, Wistar lineage). After 14 days, the animals were euthanized, and collagen fibers were quantified from the histological tissue sections. Given a non-normal distribution of the data, a gamma regression with log link function was employed and implemented through the generalized linear models module, was used to test whether there was a significant difference between the sealers. The pairwise comparison was performed using Least significant difference. There were significant differences between the sealers for type I (p=0.001), type III (p=0.023), and total collagen (p=0.002). Overall, Bioroot sealer was statistically superior to the other sealers, except in the analysis of type III collagen, in which there was no difference between the Bioroot sealer and Bio C Sealer sealer and the control group (p>0.05). Bioroot RCS bioceramic endodontic sealer stimulates a greater production of collagen.

Resumo Este estudo visou avaliar a capacidade de reparação de tecidos de quatro cimentos endodônticos biocerâmicos através da quantificação de fibras colágenas de tipo I e III. Foram testados os seguintes cimentos: EndoSequence BC Sealer (Brasseler, Brasseler, Savannah, EUA), Bio C Sealer (Angelus, Londrina, Brasil), Bioroot RCS (Septodont, Santa Catarina, Brasil), e Sealer Plus BC (MKLife, Porto Alegre, Brasil). Foram implantados tubos de polietileno de 1,5 mm de diâmetro e 1 cm de comprimento contendo os cimentos endodônticos no tecido subcutâneo de cinco ratos (Rattus norvegicus albinus, linhagem Wistar). Após 14 dias, os animais foram eutanasiados e as fibras colágenas foram quantificadas a partir de cortes histológicos do tecido. Diante de uma distribuição não-normal dos dados, uma regressão gama com função de ligação log, implementada por meio do módulo de modelos lineares generalizados, foi empregada para testar se havia diferença significativa entre os cimentos. A comparação dois a dois foi realizada utilizando Least significant difference. Houve diferença significativa entre os cimentos para os colágenos tipo I (p=0,001), tipo III (p=0,023) e colágeno total (p=0,002). No geral, o cimento Bioroot foi estatisticamente superior aos demais cimentos, com exceção na análise do colágeno tipo III na qual não houve diferença entre o cimento Bioroot e o cimento Bio C Sealer e o grupo controle (p>0,05). O cimento endodôntico biocerâmico Bioroot RCS foi capaz de estimular uma maior produção de colágeno.

Manejo de reações adversas dermatológicas em pacientes submetidos à terapia quimioterápica antineoplásica / Management of dermatological adverse reactions in patients undergoing antineoplastic chemotherapy

Objetivo: o presente estudo tem como objetivo reunir recomendações de cuidados considerando a prevenção e tratamento de lesões de pele induzidas pelo tratamento com quimioterápicos antineoplásicos, de acordo com os estudos e consensos atuais. Metodologia: realizou-se um estudo bibliográfico para levantamento das relações entre os principais fármacos antineoplásicos e suas intercorrências dermatológicas, bem como seus respectivos manejos, para subsidiar a orientação e aconselhamento aos profissionais de saúde que acompanham o paciente oncológico. Resultado: os principais problemas dermatológicos decorrentes do uso de antineoplásicos correspondem às lesões de pele, tais como a descoloração, hiperpigmentação, fotossensibilidade, eritemas, descamação e prurido. Também são recorrentes os efeitos adversos que acometem os pelos e cabelos, resultando em alopecia, e a modificação do crescimento e lesões nas unhas. Tratamentos específicos para cada caso são capazes de amenizar ou reverter os problemas. Conclusão: as reações adversas aos medicamentos envolvendo quimioterapia são frequentes na prática oncológica, e variam em termos de frequência e gravidade, atingindo diversos anexos cutâneos. O adequado manejo destes efeitos melhora a integridade da pele e demais estruturas, proporcionando a esses pacientes a melhoria da autoestima e da qualidade de vida.

Objective: the present study aims to gather care recommendations considering the prevention and treatment of skin lesions induced by treatment with antineoplastic chemotherapy, according to current studies and consensus. Methodology: a bibliographical study was carried out to survey the relationships between the main antineoplastic drugs and their dermatological intercurrences, as well as their respective management, to subsidize the guidance and counselling of health professionals who treat cancer patients. Result: the main dermatological problems arising from the use of antineoplastic agents correspond to skin lesions, such as discoloration, hyperpigmentation, photosensitivity, erythema, scaling and pruritus. Adverse effects that affect hair and body hair are also recurrent, resulting in alopecia, and the modification of growth and lesions on the nails. Specific treatments for each case can alleviate or reverse the problems. Conclusion: adverse drug reactions involving chemotherapy are frequent in oncology practice, and vary in terms of frequency and severity, affecting various skin appendages. Proper management of these effects improves the integrity of the skin and other structures, providing these patients with improved self-esteem and quality of life.

Incidência e eventos adversos da hipodermóclise no idoso em cuidados paliativos / Incidencia y eventos adversos de hipodermoclisis en ancianos en cuidados paliativos / Incidence and adverse events of hypodermoclysis in the elderly in palliative care

Objetivo: estimar a incidência, tempo de ocorrência de eventos adversos e tempo de permanência da hipodermóclise no idoso Método: Pesquisa realizada com 127 idosos em cuidados paliativos. A avaliação da hipodermóclise foi realizada a cada 24 horas até a ocorrência do evento. Realizou-se análise descritiva, calculando as proporções e a taxa de incidência por 100 punções/pacientes. Resultados: A taxa de incidência dos eventos adversos foi de 22,8% para a hipodermóclise e 27% para os indivíduos em uso de hipodermóclise. O cateter permaneceu em média quatro dias, sendo no mínimo um dia e no máximo 15 dias; a chance de eventos adversos no primeiro dia foi de 6%, de 28% no quinto dia e 48% no décimo. Conclusão: Incidência de eventos adversos foi pequena e localizada; tempo médio da permanência do cateter no local de inserção foi de quatro dias e as probabilidades de apresentar complicações aumentaram no decorrer dos dias.

Objective: to estimate the incidence, time of occurrence of adverse events and time of permanence of hypodermoclysis in the elderly. Method: Research carried out with 127 elderly people in Palliative Care. Assessment of hypodermoclysis was performed every 24 hours until the event occurred. Descriptive analysis was performed, proportions and incidence rate were calculated per 100 punctures/patients. Results: The incidence rate of adverse events was 22.8% for hypodermoclysis and 27% for individuals using hypodermoclysis. The catheter remained for an average of 4 days, with a minimum of 1 day and a maximum of 15 days; the chance of adverse events on the 1st day was 6%, 28% on the 5th day and 48% on the 10th. Conclusion: The incidence of adverse events was small and localized; mean time of catheter permanence at the insertion site was 4 days and the probability of presenting complications increased over the days.

Objetivo: estimar la incidencia, tiempo de ocurrencia de eventos adversos y tiempo de permanencia de la hipodermoclisis en ancianos Método: Investigación realizada con 127 ancianos en Cuidados Paliativos. La evaluaciónde la hipodermoclisis se realizó cada 24 horas hasta que ocurrió el evento. Se realizó análisis descriptivo, se calcularon proporciones y tasa de incidencia por 100 punciones/pacientes. Resultados: La tasa de incidencia de eventos adversos fue del 22,8 % para la hipodermoclisis y del 27 % para los individuos que usaban la hipodermoclisis. El catéter permaneció en promedio 4 días, con un mínimo de 1 día y un máximo de 15 días; la probabilidad de eventos adversos el primer día fue del 6 %, del 28 % el quinto día y del 48 % el décimo. Conclusión: La incidencia de eventos adversos fue pequeña y localizada; el tiempo medio de permanencia del catéter en el sitio de inserción fue de 4 días y la probabilidad de presentar complicaciones aumentó con el transcurso de los días.

The burden of skin diseases in India: Global Burden of Disease Study 2017

Background: The prevalence of skin diseases has increased over the last few decades, and they contribute to a significant burden on health-care systems across the world. Aims/Objective: This report looks at the burden of skin and subcutaneous diseases in terms of years lived with disability and age-standardised years lived with disability in India using the Global Burden of Disease Study results from 2017. Methods: Data were obtained from the Global Burden of Disease online interactive tool. Updated estimates of the world’s health for 359 diseases and injuries and 84 risk factors from 1990 to 2017 are available in this interactive tool. Results: Years lived with disability due to skin and subcutaneous diseases accounted for 4.02% of the total years lived with disability in India in 2017. There was an increase of 53.7% in all age standardised years lived with disability for all the skin and subcutaneous diseases from 1990 to 2017. Among skin and subcutaneous diseases, dermatitis contributed maximum years lived with disability (1.40 million; 95% uncertainty interval, 0.82–2.21) in 2017, followed by urticaria (1.02 million; 95% uncertainty interval, 0.06–1.44) with percentage increases of 48.9% and 45.7% respectively. Conclusion: The burden due to infectious skin diseases (e.g., scabies, fungal skin disease and bacterial skin disease) and non-infectious diseases (e.g., dermatitis, urticaria and psoriasis) has increased over the past three decades, however the age-standardised years lived with disability for leprosy, scabies, fungal infections, sexually transmitted infections and non-melanoma skin cancer (basal cell carcinoma) has decreased. The high burden of skin and subcutaneous diseases demand that they be given due importance in the national programmes and health policy of India.

A study of teaching module on subcutaneous drug administration and communication skills in pharmacology according to competency-based medical education curriculum

Background: Theory lectures in pharmacology are covering various oral and parenteral routes of drug administration, mainly focusing on knowledge domain, but soft and psychomotor skills were less taught in undergraduate students. Demonstrating correct method of subcutaneous route of drug administration and communication skills as introduced by competency-based medical education (CBME) competency-based curriculum will help in early acquisition of the skills and minimize the errors in administration in insulin, heparin, and vaccines. Aim and Objectives: The aims of this study were to teach the subcutaneous drug administration (S/C) and communication skills to undergraduate students in pharmacology and to evaluate the perception of students and teachers toward new CBME curriculum. Materials and Methods: Correct technique of subcutaneous drug administration was demonstrated on mannequins after browsing through the videos of S/C route. Students were told to perform it independently on mannequins. Perception of students and staff members were collected with pre-validated questionnaire provided after the practical teaching hours. Results: In our study, majority of students (94%) felt that learning S/C route of drug administration correctly will help in managing various patients like administration of insulin in diabetic patients in their near future days. They were well advanced in communicating with patients regarding usage of medications and were (90%) also in favor of introduction of this experiment in UG curriculum. Conclusions: Our study concluded that subcutaneous teaching technique introduced by CBME curriculum in practical classes was well accepted by students and were more confident in soft skills and psychomotor skills at the end of the study.

Hidatidosis subcutánea primaria / Primary subcutaneous hydatid disease: a case report

La hidatidosis o equinococosis quística es una zoonosis parasitaria endémica causada por el estadio larvario del cestode Echinococcus granulosus. El hígado y el pulmón son los órganos con afección más frecuente. Su ubicación subcutánea es una entidad rara, poco descrita, y por ende un reto diagnóstico. Describimos el caso de una mujer, de 18 años de edad, procedente de un área endémica, que presentó un quiste hidatídico primario supraclavicular.

Hydatid disease or cystic echinococcosis is an endemic parasitic zoonosis caused by the larval stage of the cestode Echinococcus granulosus, the liver and lung being the most frequently affected organs. Its subcutaneous location is a rare entity, little described, and therefore a diagnostic challenge. We describe the case of an 18-year-old woman from an endemic area who presented with a primary supraclavicular hydatid cyst.

Experimental study of subcutaneous adipose-derived stem cells inhibiting orthodontic root resorption / 中国修复重建外科杂志

OBJECTIVE@#To investigate the effect of human subcutaneous adipose-derived stem cells (hADSCs) local transplantation on orthodontically induced root resorption (OIRR) and provide theoretical and experimental basis for the clinical application of hADSCs to inhibit OIRR.@*METHODS@#Forty 8-week-old male Sprague Dawley rats were randomly divided into experimental group and control group, with 20 rats in each group, to establish the first molar mesial orthodontic tooth movement (OTM) model of rat right maxillary. The rats in the experimental group were injected with 25 μL of cell suspension containing 2.5×10 5 hADSCs on the 1st, 4th, 8th, and 12th day of modeling, while the rats in the control group were injected with 25 μL of PBS. The rat maxillary models were obtained before and after 7 and 14 days of force application, and 10 rats in each group were killed and sampled after 7 and 14 days of force application. The OTM distance was measured by stereomicroscope, the root morphology of the pressure side was observed by scanning electron microscope and the root resorption area ratio was measured. The root resorption and periodontal tissue remodeling of the pressure side were observed by HE staining and the root resorption index was calculated. The number of cementoclast and osteoclast in the periodontal tissue on the pressure side was counted by tartrate resistant acid phosphatase staining.@*RESULTS@#The TOM distance of both groups increased with the extension of the force application time, and there was no significant difference ( P<0.05). There was no significant difference in OTM distance between the experimental group and the control group after 7 and 14 days of force application ( P>0.05). Scanning electron microscope observation showed that small and shallow scattered resorption lacunae were observed on the root surface of the experimental group and the control group after 7 days of force application, and there was no significant difference in the root resorption area ratio between the two groups ( P>0.05); after 14 days of application, the root resorption lacunae deepened and became larger in both groups, and the root resorption area ratio in the experimental group was significantly lower than that in the control group ( P<0.05). The range and depth of root absorption in the experimental group were smaller and shallower than those in the control group, and the root absorption index in the experimental group was significantly lower than that in the control group after 14 days of force application ( P<0.05). The number of cementoclast in the experimental group was significantly lower than that in the control group after 7 and 14 days of force application ( P<0.05); the number of osteoclasts in the experimental group was significantly lower than that in the control group after 14 days of force application ( P<0.05).@*CONCLUSION@#Local transplantation of hADSCs may reduce the area and depth of root resorption by reducing the number of cementoclasts and osteoclasts during OTM in rats, thereby inhibiting orthodontic-derived root resorption.

Supramolecular approaches for insulin stabilization without prolonged duration of action

Aggregation represents a significant challenge for the long-term formulation stability of insulin therapeutics. The supramolecular PEGylation of insulin with conjugates of cucurbit[7]uril and polyethylene glycol (CB[7]‒PEG) has been shown to stabilize insulin formulations by reducing aggregation propensity. Yet prolonged in vivo duration of action, arising from sustained complex formation in the subcutaneous depot, limits the application scope for meal-time insulin uses and could increase hypoglycemic risk several hours after a meal. Supramolecular affinity of CB[7] in binding the B1-Phe residue on insulin is central to supramolecular PEGylation using this approach. Accordingly, here we synthesized N-terminal acid-modified insulin analogs to reduce CB[7] interaction affinity at physiological pH and reduce the duration of action by decreasing the subcutaneous depot effect of the formulation. These insulin analogs show weak to no interaction with CB[7]‒PEG at physiological pH but demonstrate high formulation stability at reduced pH. Accordingly, N-terminal modified analogs have in vitro and in vivo bioactivity comparable to native insulin. Furthermore, in a rat model of diabetes, the acid-modified insulin formulated with CB[7]‒PEG offers a reduced duration of action compared to native insulin formulated with CB[7]‒PEG. This work extends the application of supramolecular PEGylation of insulin to achieve enhanced stability while reducing the risks arising from a subcutaneous depot effect prolonging in vivo duration of action.

Relationship between the inserting sites of Fu's subcutaneous needling and traditional acupoints: revelation to acupuncture and moxibustion / 中国针灸

Focusing on the phenomenon of "de-acupoints" of the needle insertion sites in Fu's subcutaneous needling (FSN), the authors allocated the evolution and characteristics of the needle insertion sites of FSN. From six aspects, named morphology and structure, location, nomenclature, numbers and meridian tropism, indications and acupuncture manipulations, the comparison was made between the insertion sites of FSN and traditional acupoints. It is believed: ①The needle insertion sites of FSN has the basic attributes of acupoint, which not only refers to the operation site, but also indicates the reaction of disease; moreover, it is the treatment site with significant therapeutic effect. ②The optimized sites of insertion in FSN should be named differently and their locations and numbers should be specified relatively. ③The insertion sites of FSN should be further intersected and integrated with traditional acupoints, and a part of traditional acupoints should become the insertion sites of FSN. ④Accepting and integrating the insertion sites of FSN, and expanding the scope of traditional acupoints may be the new project in the research of traditional acupoints.

Maternal-fetal outcomes of pregnant women with type 1 diabetes treated with continuous subcutaneous insulin infusion or multiple daily injections during pregnancy - A Brazilian health care referral center cohort study

ABSTRACT Objective: Pregnant women with type 1 diabetes (T1D) have an increased risk of maternal-fetal complications. Regarding treatment, continuous subcutaneous insulin infusion (CSII) has advantages compared to multiple daily injections (MDI), but data about the best option during pregnancy are limited. This study's aim was to compare maternal-fetal outcomes among T1D patients treated with CSII or MDI during pregnancy. Subjects and methods: This study evaluated 174 pregnancies of T1D patients. Variables of interest were compared between the groups (CSII versus MDI), and logistic regression analysis was performed (p < 0.05). Results: Of the 174 included pregnancies, CSII was used in 21.3% (37) and MDI were used in 78.7% (137). HbA1c values improved throughout gestation in both groups, with no difference in the first and third trimesters. The frequency of cesarean section was significantly higher in the CSII group [94.1 vs. 75.4%, p = 0.017], but there was no significant difference in the frequency of other complications, such as miscarriage, premature delivery and preeclampsia. The mean birth weight and occurrence of neonatal complications were also similar, except for the proportion of congenital malformations, which was significantly lower in the CSII group [2.9 vs. 15.6%, p = 0.048]. In regression analysis, the association of CSII with cesarean section and malformations lost significance after adjusting for HbA1c and other covariates of interest. Conclusion: In this study, we observed a higher frequency of cesarean section and a lower occurrence of congenital malformations in the CSII group, but the adjusted results might indicate that these associations are influenced by glycemic control.

Enxertos compostos de gordura para correção de distrofia facial em caso de esclerodermia localizada / Composite fat grafts for correcting facial dystrophy in a case of localized scleroderma

A esclerodermia localizada (morfeia linear) é uma doença rara que causa distrofia e assimetria faciais em mulheres jovens. É relatado o caso de uma paciente de 20 anos que foi tratada com enxertos compostos de gordura. Após a coleta do lipoaspirado de gordura subcutânea profunda, a microgordura e a nanogordura não filtrada foram processadas separadamente para formar enxertos compostos de gordura. Estes foram meticulosamente transplantados em camadas, para reconstruir o subcutaneo da face da paciente. Após um ano, observou-se boa pega de gordura com correção bem-sucedida da assimetria e restabelecimento do equilíbrio facial.

Localized scleroderma (linear morphea) is a rare disease that causes facial dystrophy and asymmetry in young women. We report the case of a 20-year-old female patient who was treated with novel composite fat grafts. After extracting lipoaspirate from deep subcutaneous fat, the microfat and the unfiltered nanofat were processed separately, and amalgamated, obtaining composite fat grafts. These were meticulously transplanted layer by layer to rebuild the subcutaneous tissue of the patient's face. After one year, a good volume of fat retention was observed with successful correction of asymmetry and restoration of facial balance.

Kite subcutaneous pedicle flap design in postoperative defect repair of nasal skin cancer based on partition and blood supply / 中华医学美学美容杂志

Objective:To investigate the clinical effect of repairing postoperative nasal skin cancer defect with subcutaneous pedicle flap based on partition and blood supply.Methods:From March 2018 to September 2020, 39 patients with skin cancer (basal cell carcinoma, Bowen′s disease, squamous cell carcinoma and malignant melanoma in situ) were repaired with kites subcutaneous pedicle flap after extensive resection.Results:Thirty-nine patients were treated with parafasal kite flaps, including 44 cases. The donor sites of the flap were nasal tip in 4 cases, bilateral alar in 7 cases, bilateral nasolabial sulcus in 19 cases, bilateral parasinal in 12 cases and interglabellar in 2 cases. There were no serious complications such as necrosis, hematoma or infection. During the follow-up period of 6 to 24 months, 2 patients complained of occasional tingling in the surgical area, 1 complained of occasional pruritus, and 1 patient had local recurrence of squamous cell carcinoma and underwent surgery again. The scar was evaluated 6 months after surgery, and the scores of Vancouver scar scale and visual analogue scale were 2.42±1.04 and 7.83±1.21, respectively. The skin color of the operation area was similar to that of the surrounding skin without obvious local strain deformation.Conclusions:The subcutaneous pedicle flap designed by considering the nasal division and blood supply has a high survival rate, fewer complications and small local appearance deformation, which is worthy of popularization and application.

Ultrasonography and comparative study of needle tip reaching the target tissue with different kinds of subcutaneous injection techniques / 中国实用护理杂志

Objective:To compare the accuracy of the needle tip reaching the target tissue between two subcutaneous injection techniques under ultrasound imaging in order to provide a basis for clinical injection to make a safe and reasonable decision.Methods:This was a parallel controlled non-inferiority comparative study. A total of 68 patients who received subcutaneous injections in the outpatient injection room of Nanjing Drum Tower Hospital Affiliated to Nanjing University from June 2021 to September 2022 were selected as the research subjects, and they were divided intothe A and B group according to the random number table method, there were 34 cases in each group. Group A received pinched skin injections, and group B received taut skin injections. Unify the injection site, injection needle length, and needle insertion angle. The accuracy rate of the needle tip reaching the target tissue, namely the subcutaneous fat layer, was compared between the two groups by ultrasound imaging, and the pain scores and the imaging performance during the injection process were observed.Results:The accuracy of the needle tip reaching the subcutaneous fat layer in the group A was 97.1%(33/34), which compared with the 100.0%(34/34) in the group B, there was no significant difference ( χ2 = 0.53, P>0.05). There was no significant difference about the distribution of pain scores between the two groups ( χ2 = 0.67, P>0.05). There were no significant differences about age, subcutaneous fat thickness and the distance from the needle tip to the myofascial in patients with different pain scores ( F = 1.20, 0.44, H = 0.64, all P>0.05). Conclusions:Under certain conditions, pinching the skin and tightening the skin have the same accuracy and safety when the needle tip reaches the subcutaneous fat layer of the target tissue, and the choice should be made according to the clinical situation. Imaging observations have enlightening significance for the practice of subcutaneous injection.

Evidence summary for the management of insulin injection-related sharps waste disposal in patients with diabetes mellitus / 中国实用护理杂志

Objective:To retrieve and summarize the best evidence related to the management of insulin injection-related sharps waste disposal in diabetic patients at home and abroad, so as to provide reference for clinical healthcare professionals.Methods:This was a evidence-based research. Evidence on insulin injection-related sharps waste management in patients with diabetes, including guidelines, expert consensus, evidence summaries, best practice information sheet, recommended practices, clinical decisions and systematic reviews was systematically searched from domestic and international databases and professional websites, and the search time frame was from the establishment of the database to December 2021. Evidence was extracted and summarized following a quality evaluation of the literature that met the criteria.Results:A total of 15 papers were included, summarizing 25 pieces of best evidence on four areas including risk assessment and management of sharps waste associated with insulin injections, education and training, and the use of safe devices and sharps containers.Conclusions:Best evidence on the management of insulin injection-related sharps waste disposal provides evidence to support clinical practice for healthcare professionals to standardized sharps waste disposal practices in patients with diabetes.

Effect of insulin intraperitoneal injection combined with dietary intervention on blood glucose regulation in KKAy mice with spontaneous type 2 diabetes / 国际生物医学工程杂志

Objective:To study the effect of insulin intraperitoneal administration combined with dietary intervention on glycemic regulation in in KKAy mice with spontaneous type 2 diabetes.Methods:An animal model of type 2 diabetes was established, and healthy C57BL/6J mice were selected as the normal control group and healthy KKAy mice as the non-disease group. The successfully modeled KKAy mice were randomly divided into the subcutaneous group, the intraperitoneal group, and the untreated group. The non-disease group was given a maintenance diet, and all other groups were fed a high-fat, high-sugar diet. The daily feeding time was from 08:00 to 20:00, with one feeding at a 4-hour interval, for a total of four times. The subcutaneous and intraperitoneal groups were given subcutaneous and intraperitoneal insulin injections before feeding, and recombinant glargine insulin injection (subcutaneous group: 0.125 IU/g; intraperitoneal group: 0.250 IU/g) was injected before the first feeding, and biosynthetic human insulin injection (subcutaneous group: 0.075 IU/g; intraperitoneal group: 0.125 IU/g) was injected after a 0.5 h interval; the rest 3 times before feeding, the biosynthetic human insulin injection (subcutaneous group: 0.075 IU/g; intraperitoneal group: 0.125 IU/g) was injected for 4 weeks. The dietary intake, body mass, fasting blood glucose, and 1 and 2 h postprandial blood glucose of mice in each group were tested regularly, and an oral glucose tolerance test was performed.Results:The total dietary intake of mice in the intraperitoneal group was lower than that in the subcutaneous group. Compared with the initial body mass, the body mass of the mice in the subcutaneous and intraperitoneal groups decreased by 5.05 and 3.59 g at week 4, respectively. The changes of fasting blood glucose in the subcutaneous and intraperitoneal groups ranged from 5.4 to 9.4 and 5.4 to 6.4 mmol/L, respectively, and the changes of 1 h postprandial blood glucose ranged from 4.6 to 12.3 and 5.7 to 8.9 mmol/L, respectively, and the changes of 2 h postprandial blood glucose ranged from 2.5 to 9.8 and 3.8 to 7.1 mmol/L, respectively. For the glucose tolerance index, the intraperitoneal group showed improvement at all time points, and the subcutaneous group showed a decrease at all time points except for 0 and 60 min.Conclusions:In combination with dietary intervention, insulin intraperitoneal injection was more effective in controlling blood glucose in KKAy mice with spontaneous type 2 diabetes compared with subcutaneous insulin injection, and had a significant improvement in glucose tolerance.