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1.
Adv Gerontol ; 37(1-2): 40-45, 2024.
Artigo em Russo | MEDLINE | ID: mdl-38944771

RESUMO

The aim of the study was to investigate the peculiarities of morphometric parameters of peripheral blood lymphocytes in chronic pyelonephritis in elderly patients in comparison with young and middle-aged patients. A total of 81 patients with chronic pyelonephritis in the exacerbation phase were examined. All patients were divided into three age groups according to WHO recommendations: the 1st - 42patients of young age (18-44 years); the 2nd - 17 patients of middle age (45-59 years); the 3rd - 22 elderly patients (60-74 years). Computer morphometry of lymphocytes was performed in all examined patients. In elderly patients with chronic pyelonephritis the size and сytoplasmic-nuclear ratio of lymphocytes increase. This indicates the preservation of lymphocyte defense responses at this age. In male patients with chronic pyelonephritis in the 1st and 2nd age groups the size of lymphocytes increases, and in female patients - decreases. The сytoplasmic-nuclear ratio increases in males of these age groups, while it remains unchanged or decreases in females. Indirect indications of reduced immunity in young and middle-aged women with chronic inflammation in the kidneys have been obtained.


Assuntos
Linfócitos , Pielonefrite , Humanos , Pielonefrite/sangue , Pielonefrite/diagnóstico , Pessoa de Meia-Idade , Feminino , Masculino , Linfócitos/imunologia , Linfócitos/patologia , Idoso , Adulto , Doença Crônica , Fatores Etários
2.
Int J Med Microbiol ; 315: 151625, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38824713

RESUMO

OBJECTIVES: We report a case of bacteremia with pyelonephritis in an adult male with an underlying disease caused by α-hemolytic streptococci. α-Hemolytic streptococci were isolated from blood, but it was challenging to identify its species. This study aimed to characterize the causative bacterium SP4011 and to elucidate its species. METHODS: The whole-genome sequence and biochemical characteristics of SP4011 were determined. Based on the genome sequence, phylogenetic analysis was performed with standard strains of each species of α-hemolytic streptococci. Digital DNA-DNA hybridization (dDDH) and average nucleotide identity (ANI) values were calculated. RESULTS: SP4011 showed optochin susceptibility and bile solubility, but did not react with pneumococcal omni antiserum. Phylogenetic analysis of the whole-genome sequence showed that SP4011 clustered with S. pneumoniae and S. pseodopneumoniae and was most closely related to S. pseodopneumoniae. Genomic analysis revealed that ANI and dDDH values between SP4011 and S. pseodopneumoniae were 94.0 % and 56.0 %, respectively, and between SP4011 and S. pneumoniae were 93.3 % and 52.2 %, respectively. Biochemical characteristics also showed differences between SP4011 and S. pseodopneumoniae and between SP4011 and S. pneumoniae. These results indicate that SP4011 is a novel species. CONCLUSION: Our findings indicate that SP4011 is a novel species of the genus Streptococcus. SP4011 has biochemical characteristics similar to S. pneumoniae, making it challenging to differentiate and requiring careful clinical diagnosis. This isolate was proposed to be a novel species, Streptococcus parapneumoniae sp. nov. The strain type is SP4011T (= JCM 36068T = KCTC 21228T).


Assuntos
Bacteriemia , Filogenia , Pielonefrite , Infecções Estreptocócicas , Streptococcus , Humanos , Masculino , Infecções Estreptocócicas/microbiologia , Bacteriemia/microbiologia , Streptococcus/genética , Streptococcus/isolamento & purificação , Streptococcus/classificação , Pielonefrite/microbiologia , Genoma Bacteriano , DNA Bacteriano/genética , Sequenciamento Completo do Genoma , Antibacterianos/farmacologia , Hibridização de Ácido Nucleico , Técnicas de Tipagem Bacteriana , Testes de Sensibilidade Microbiana , Pessoa de Meia-Idade
3.
Pediatr Ann ; 53(6): e217-e222, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38852079

RESUMO

Urinary tract infections (UTIs) are serious bacterial infections affecting children of all ages. An understanding of the methods of urine collection is important to prevent the contamination of urine specimens and to interpret results. The diagnosis of a UTI requires appropriate interpretation of both urinalysis and urine culture results because testing must indicate evidence of inflammation and the presence of bacteria. Rapid treatment of UTIs is imperative to prevent acute decompensation and systemic illness. Empiric antibiotics should be narrowed as soon as possible to tailor antibiotic treatment and limit antibiotic overuse. Imaging with a renal ultrasound scan is recommended for all infants with first febrile UTIs rather than a voiding cystourethrogram. An additional goal of UTI treatment is to prevent renal scarring, which can lead to lifelong health consequences. Children with anatomic abnormalities of the urinary tract and those who have recurrent UTIs are at increased risk of renal scarring. [Pediatr Ann. 2024;53(6):e217-e222.].


Assuntos
Antibacterianos , Pielonefrite , Infecções Urinárias , Humanos , Infecções Urinárias/diagnóstico , Infecções Urinárias/tratamento farmacológico , Pielonefrite/diagnóstico , Antibacterianos/uso terapêutico , Criança , Lactente
4.
Exp Clin Transplant ; 22(3): 207-213, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38695589

RESUMO

OBJECTIVES: Modern immunosuppressive regimens have reduced rejection episodes in renal allograft recipients but have increased the risk of opportunistic infections. Infections are considered to be the second leading cause of death after cardiovascular complications in renal allograft recipients. Data on opportunistic infections affecting the allograft itself are scarce. The present study describes the spectrum of renal opportunistic infections and their outcomes diagnosed on renal allograft biopsies and nephrectomy specimens. MATERIALS AND METHODS: Our retrospective observational study was conducted from December 2011 to December 2021. We analyzed infectious episodes diagnosed on renal allograft biopsies or graft nephrectomy specimens. We obtained clinical, epidemiological, and laboratory details for analyses from hospital records. RESULTS: BK virus nephropathy was the most common opportunistic infection affecting the allograft, accounting for 47% of cases, followed by bacterial graft pyelonephritis (25%). Mucormycosis was the most common fungal infection. The diagnosis of infection from day of transplant ranged from 14 days to 39 months. Follow-up periods ranged from 1 to 10 years. Mortality was highest among patients with opportunistic fungal infection (62%), followed by viral infections, and graft failure rate was highest in patients with graft pyelonephritis (50%). Among patients with BK polyomavirus nephropathy, 45% had stable graft function compared with just 33% of patients with bacterial graft pyelonephritis. CONCLUSIONS: BK polyoma virus infection was the most common infection affecting the renal allograft in our study. Although fungal infections caused the highest mortality among our patients, bacterial graft pyelonephritis was responsible for maximum graft failure. Correctly identifying infections on histology is important so that graft and patient life can be prolonged.


Assuntos
Transplante de Rim , Nefrectomia , Infecções Oportunistas , Humanos , Transplante de Rim/efeitos adversos , Transplante de Rim/mortalidade , Estudos Retrospectivos , Masculino , Feminino , Nefrectomia/efeitos adversos , Pessoa de Meia-Idade , Adulto , Biópsia , Resultado do Tratamento , Fatores de Tempo , Fatores de Risco , Infecções Oportunistas/imunologia , Infecções Oportunistas/mortalidade , Infecções Oportunistas/diagnóstico , Infecções Oportunistas/microbiologia , Infecções Oportunistas/virologia , Infecções Oportunistas/epidemiologia , Aloenxertos , Doadores Vivos , Sobrevivência de Enxerto , Turquia/epidemiologia , Idoso , Pielonefrite/microbiologia , Pielonefrite/diagnóstico , Pielonefrite/mortalidade , Infecções por Polyomavirus/diagnóstico , Infecções por Polyomavirus/mortalidade , Infecções por Polyomavirus/virologia , Infecções por Polyomavirus/epidemiologia , Infecções por Polyomavirus/imunologia
5.
Medicine (Baltimore) ; 103(20): e38114, 2024 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-38758906

RESUMO

Early identification of the sources of infection in emergency department (ED) patients of sepsis remains challenging. Computed tomography (CT) has the potential to identify sources of infection. This retrospective study aimed to investigate the role of CT in identifying sources of infection in patients with sepsis without obvious infection foci in the ED. A retrospective chart review was conducted on patients with fever and sepsis visiting the ED of Linkou Chang Gung Memorial Hospital between July 1, 2020 and June 30, 2021. Data on patient demographics, vital signs, clinical symptoms, underlying medical conditions, laboratory results, administered interventions, length of hospital stay, and mortality outcomes were collected and analyzed. Of 218 patients included in the study, 139 (63.8%) had positive CT findings. The most common sources of infection detected by CT included liver abscesses, acute pyelonephritis, and cholangitis. Laboratory results showed that patients with positive CT findings had higher white blood cell and absolute neutrophil counts and lower hemoglobin levels. Positive blood culture results were more common in patients with positive CT findings. Additionally, the length of hospital stay was longer in the group with positive CT findings. Multivariate logistic regression analysis revealed that hemoglobin levels and positive blood culture results independently predicted positive CT findings in patients with fever or sepsis without an obvious source of infection. In patients with sepsis with an undetermined infection focus, those presenting with leukocytosis, anemia, and elevated absolute neutrophil counts tended to have positive findings on abdominal CT scans. These patients had high rates of bacteremia and longer lengths of stay. Abdominal CT remains a valuable diagnostic tool for identifying infection sources in carefully selected patients with sepsis of undetermined infection origins.


Assuntos
Sepse , Tomografia Computadorizada por Raios X , Humanos , Masculino , Estudos Retrospectivos , Feminino , Tomografia Computadorizada por Raios X/métodos , Sepse/diagnóstico por imagem , Pessoa de Meia-Idade , Idoso , Tempo de Internação/estatística & dados numéricos , Serviço Hospitalar de Emergência , Abscesso Hepático/diagnóstico por imagem , Adulto , Pielonefrite/diagnóstico por imagem , Colangite/diagnóstico por imagem , Idoso de 80 Anos ou mais , Febre de Causa Desconhecida/diagnóstico por imagem
6.
Clin Nephrol ; 102: 16-24, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38726574

RESUMO

AIMS: This prospective study aimed to evaluate the characteristics and findings of children who presented with acute pyelonephritis (APN) and to determine the independent risk factors for kidney scarring. MATERIAL AND METHODS: Patients who satisfied the following criteria were enrolled in the study: first known episode of APN; at least two of the following findings: fever ≥ 38.5 °C, white blood cell count ≥ 10,000/mm3, erythrocyte sedimentation rate ≥ 20 mm/h, C-reactive protein ≥ 20 mg/dL; absence of congenital abnormalities or other kidney and systemic diseases, except vesicoureteral reflux (VUR); no APN relapses until the time of kidney scar detection. 99mTc-Dimercaptosuccinic acid kidney scintigraphy (99mTc-DMSA) was performed at admission, along with a kidney ultrasound. Follow-up 99mTc-DMSA took place after 6 months. Radiographic cystourethrography for VUR detection and grading was performed 1 month after the acute infection. RESULTS: We enrolled 70 children in the study. The kidney ultrasound failed to diagnose more than half of the cases of APN. VUR was found in 21.5% of children. 75% had findings of APN in the acute phase through 99mTc-DMSA, while in the second 99mTc-DMSA, there was a complete remission in 68% of them. Scars were observed more frequently in older children, children with VUR grade ≥ III, and children not on antibiotic prophylaxis. CONCLUSION: VUR did not appear to be associated with the first episode of APN, and children older than 1 year of age had a higher risk of scarring. Antibiotic prophylaxis may prevent kidney scarring due to host immunomodulatory effects, but more studies are needed so that conclusions can be drawn.


Assuntos
Cicatriz , Febre , Rim , Pielonefrite , Ácido Dimercaptossuccínico Tecnécio Tc 99m , Infecções Urinárias , Humanos , Estudos Prospectivos , Masculino , Feminino , Fatores de Risco , Cicatriz/etiologia , Cicatriz/diagnóstico por imagem , Pré-Escolar , Infecções Urinárias/complicações , Infecções Urinárias/diagnóstico , Pielonefrite/complicações , Pielonefrite/etiologia , Febre/etiologia , Lactente , Criança , Rim/diagnóstico por imagem , Rim/patologia , Ultrassonografia , Compostos Radiofarmacêuticos , Cintilografia , Doença Aguda , Refluxo Vesicoureteral/complicações
7.
Drugs ; 84(6): 737-744, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38761353

RESUMO

Cefepime/enmetazobactam (EXBLIFEP®), an intravenous (IV) antibacterial fixed-dose combination of a 4th generation cephalosporin and an extended-spectrum ß-lactamase (ESBL) inhibitor, is being developed by Allecra Therapeutics and ADVANZ PHARMA for the treatment of infections caused by multi-drug-resistant (MDR) Gram-negative bacteria. In February 2024, cefepime/enmetazobactam was approved in the USA for use in adults with complicated urinary tract infections (cUTI) including pyelonephritis, caused by susceptible strains of Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Proteus mirabilis, and Enterobacter cloacae complex. In March 2024, cefepime/enmetazobactam was approved in the EU for use in adults for the treatment of cUTI, including pyelonephritis, and hospital-acquired pneumonia, including ventilator associated pneumonia, and the treatment of patients with bacteraemia occurring in association with or suspected to be associated with any of these infections. This article summarizes the milestones in the development of cefepime/enmetazobactam leading to this first approval for the treatment of adults with infections caused by MDR Gram-negative bacteria.


Assuntos
Antibacterianos , Cefepima , Aprovação de Drogas , Infecções Urinárias , Humanos , Cefepima/farmacologia , Cefepima/uso terapêutico , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Antibacterianos/administração & dosagem , Infecções Urinárias/tratamento farmacológico , Infecções Urinárias/microbiologia , Infecções por Bactérias Gram-Negativas/tratamento farmacológico , Farmacorresistência Bacteriana Múltipla/efeitos dos fármacos , Bactérias Gram-Negativas/efeitos dos fármacos , Cefalosporinas/uso terapêutico , Cefalosporinas/farmacologia , Inibidores de beta-Lactamases/farmacologia , Inibidores de beta-Lactamases/uso terapêutico , Inibidores de beta-Lactamases/administração & dosagem , Estados Unidos , Combinação de Medicamentos , Pielonefrite/tratamento farmacológico , Pielonefrite/microbiologia
8.
Med ; 5(5): 380-382, 2024 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-38733970

RESUMO

Wagenlehner and colleagues1 demonstrated non-inferiority and superiority with respect to a primary endpoint of composite success (microbiological plus clinical) of cefepime/taniborbactam vs. meropenem in treating complicated urinary tract infections and acute pyelonephritis caused by carbapenem-susceptible gram-negative bacteria in adults. A major area of interest in real-world application of cefepime/taniborbactam is its potential role in treating carbapenem-resistant infections, which deserves further investigation.


Assuntos
Antibacterianos , Carbapenêmicos , Cefepima , Infecções Urinárias , Cefepima/uso terapêutico , Cefepima/farmacologia , Humanos , Antibacterianos/uso terapêutico , Antibacterianos/farmacologia , Carbapenêmicos/uso terapêutico , Carbapenêmicos/farmacologia , Infecções Urinárias/tratamento farmacológico , Infecções Urinárias/microbiologia , Cefalosporinas/uso terapêutico , Cefalosporinas/farmacologia , Pielonefrite/tratamento farmacológico , Pielonefrite/microbiologia , Combinação de Medicamentos , Infecções por Bactérias Gram-Negativas/tratamento farmacológico , Meropeném/uso terapêutico , Meropeném/farmacologia , Ácidos Borínicos , Ácidos Carboxílicos
9.
J Nippon Med Sch ; 91(2): 190-197, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38777782

RESUMO

BACKGROUND: The appropriate duration of antimicrobial therapy for febrile urinary tract infection (fUTI) in children has not been established. This study examined the optimal duration of treatment for fUTI in children. METHODS: We created a protocol that used fever duration to determine the duration of antibiotic administration. Transvenous antibiotics were administered until 3 days after resolution of fever, followed by oral antibiotics for 1 week. Diagnosis of fUTI was based on a fever of 37.5°C or higher and a quantitative culture of catheterized urine yielded a bacteria count of ≥5 × 104. Acute focal bacterial nephritis (AFBN) and pyelonephritis (PN) were diagnosed on the basis of contrast-enhanced computed tomography (eCT) findings. We retrospectively reviewed treatment outcomes. RESULTS: Of the 78 patients treated according to our protocol, data from 58 were analyzed-49 children (30 boys) had PN and nine (three boys) had AFBN. Blood test results showed that patients with AFBN had significantly higher white blood cell counts and C-reactive protein levels than did those with PN; however, urinary findings and causative bacteria did not differ between groups. Time to resolution of fever and duration of intravenous antibiotic administration were significantly longer in patients with AFBN than in those with PN. However, average duration of AFBN treatment was 14.2 days, which was shorter than the previously reported administration period of 3 weeks. No recurrence was observed in AFBN patients. CONCLUSIONS: A protocol that used fever duration to determine the duration of antimicrobial treatment was useful. Invasive examinations, such as eCT, were not required.


Assuntos
Antibacterianos , Febre , Pielonefrite , Infecções Urinárias , Humanos , Infecções Urinárias/microbiologia , Infecções Urinárias/terapia , Infecções Urinárias/tratamento farmacológico , Infecções Urinárias/diagnóstico , Masculino , Feminino , Febre/etiologia , Febre/terapia , Antibacterianos/administração & dosagem , Antibacterianos/uso terapêutico , Estudos Retrospectivos , Pré-Escolar , Fatores de Tempo , Pielonefrite/terapia , Pielonefrite/microbiologia , Pielonefrite/tratamento farmacológico , Lactente , Criança , Resultado do Tratamento , Tomografia Computadorizada por Raios X , Proteína C-Reativa/análise , Nefrite/microbiologia , Nefrite/terapia , Administração Oral , Doença Aguda , Duração da Terapia , Contagem de Leucócitos , Administração Intravenosa , Protocolos Clínicos
10.
Urologiia ; (1): 24-30, 2024 Mar.
Artigo em Russo | MEDLINE | ID: mdl-38650402

RESUMO

AIM: To determine the effect of standard treatment on changes in the structural and functional properties of erythrocytes in obstructive and non-obstructive acute pyelonephritis. MATERIALS AND METHODS: The structural and functional properties of erythrocytes and their intracellular metabolism in 78 patients with a diagnosis of primary non-obstructive and secondary obstructive acute pyelonephritis, randomized by age, gender, and the minimum number of concomitant diseases were investigated. RESULTS AND DISCUSSION: In acute non-obstructive pyelonephritis, changes of the content of proteins in circulating erythrocytes responsible for the structure formation and stabilization of the plasma membrane (-spectrin, anion transport protein, pallidin, protein 4.1), intracellular metabolism (anion transport protein, glutathione-S-transferase), membrane flexibility and shape (actin, tropomyosin) are insignificant, alike from acute obstructive pyelonephritis. In addition, processes of lipid peroxidation inside red blood cells are intensified, and oxidative stress develops with a decrease in the sorption capacity of erythrocytes, as well as the content and ratio of lipid fractions in the plasma membrane, which form the basis of the lipid components and play the main role in the sequencing of protein macromolecules and the normal metabolism of red blood cells. CONCLUSION: In acute obstructive pyelonephritis, changes in the content and ratio of proteins and lipids in the erythrocyte membrane lead to functional rearrangements that are not corrected by standard treatment.


Assuntos
Eritrócitos , Pielonefrite , Humanos , Pielonefrite/sangue , Pielonefrite/metabolismo , Eritrócitos/metabolismo , Feminino , Masculino , Doença Aguda , Adulto , Pessoa de Meia-Idade , Membrana Eritrocítica/metabolismo , Membrana Eritrocítica/química
11.
Urologiia ; (1): 56-60, 2024 Mar.
Artigo em Russo | MEDLINE | ID: mdl-38650407

RESUMO

AIM: To evaluate the efficiency of the drug phytolysin (capsules) in the prevention of complications after extracorporeal lithotripsy. MATERIALS AND METHODS: A total of 15 patients diagnosed with urolithiasis and chronic pyelonephritis in the latent phase were treated. The predominant localization of radiopaque stones no larger than 20 mm in size was the collecting system. The piezoelectric lithotripsy (1-2 sessions) was performed, followed by the administration of the herbal drug Phytolysin in the dosage form of a capsule. The follow-up was carried out after 14- and 30-days using laboratory, ultrasound and x-ray methods. RESULTS: In the postoperative period, there were no cases of the pyelonephritis, which may result from a short-term disturbance of the upper urinary tract urodynamics due to the passage of stone fragments. The antibacterial, antispasmodic, diuretic and anti-inflammatory effects of Phytolysin ensured positive changes in laboratory and bacteriological tests, contributed to the prevention of postoperative complications after extracorporeal lithotripsy (renal colic, pyelonephritis), and contributed to maintaining renal blood flow within normal limits and significantly reduced the time to stone-free status. CONCLUSIONS: Our results justify the feasibility of using phytolysin in capsules in patients with urolithiasis after extracorporeal lithotripsy. The dosage form in capsules eliminates the undesirable effects associated with the specific smell and taste, that patients noted when using phytolysin in the form of a paste.


Assuntos
Litotripsia , Humanos , Feminino , Masculino , Adulto , Pessoa de Meia-Idade , Litotripsia/efeitos adversos , Litotripsia/métodos , Urolitíase/terapia , Pielonefrite , Fitoterapia , Complicações Pós-Operatórias/prevenção & controle , Complicações Pós-Operatórias/etiologia , Idoso
13.
PLoS One ; 19(4): e0298931, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38626199

RESUMO

OBJECTIVE: To analyse trends in urinary tract infection (UTIs) hospitalisation among patients adults 18-65 aged in Spain from 2000-2015. METHODS: Retrospective observational study using the Spanish Hospitalisation Minimum Data Set (CMBD), with codifications by the International Classification of Diseases (ICD-9). Variables: Type of UTIs (pyelonephritis, prostatitis, cystitis and non-specific-UTIs), sex, age (in 5 categories: 18-49 and 50-64 years in men, and 18-44, 45-55 and 56-64 years in women), comorbidity, length of stay, costs and mortality associated with admission. The incidence of hospitalisation was studied according to sex, age group and type of UTIs per 100,000. Trends were identified using Joinpoint regression. RESULTS: From 2000-2015, we found 259,804 hospitalisations for UTIs (51.6% pyelonephritis, 7.5% prostatitis, 0.6% cystitis and 40.3% non-specific UTIs). Pyelonephritis predominated in women and non-specific UTIs in men. The hospital stay and the average cost (2,160 EUR (IQR 1,7872,540 were greater in men. Overall mortality (0.4%) was greater in non-specific UTIs. More women were admitted (rates of 79.4 to 81.7) than in men (30.2 to 41). The greatest increase was found in men aged 50-64 years (from 59.3 to 87). In the Joinpoint analysis, the incidence of pyelonephritis increased in women [AAPC 2.5(CI 95% 1.6;3.4)], and non-specific UTIs decreased [AAPC -2.2(CI 95% -3.3;-1.2)]. Pyelonephritis decreased in men [AAPC -0.5 (CI 95% -1.5;0.5)] and non-specific UTIs increased [AAPC 2.3 (CI 95% 1.9;2.6)] and prostatitis increased [AAPC 2.6 (CI 95% 1.4;3.7)]. CONCLUSIONS: The urinary infection-related hospitalisation rate in adults in Spain increased during the period 2000-2015. Pyelonephritis predominated in women and non-specific UTIs in men. The highest hospitalisation rates occurred in the women but the greatest increase was found in men aged 65-74. The lenght of stay and cost were higher in men.


Assuntos
Cistite , Prostatite , Pielonefrite , Infecções Urinárias , Adulto , Feminino , Humanos , Masculino , Hospitalização , Espanha/epidemiologia , Infecções Urinárias/epidemiologia , Estudos Retrospectivos
15.
J Vet Intern Med ; 38(3): 1542-1552, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38669563

RESUMO

BACKGROUND: The diagnosis of pyelonephritis in cats is challenging and development of a noninvasive and accurate biomarker is needed. HYPOTHESES: Serum amyloid A (SAA) is increased in cats with pyelonephritis, but not in cats with other urinary tract diseases. ANIMALS: A cohort of 125 cats (149 observations). METHODS: This was a prospective study. Group 1 included cats with a diagnosis of pyelonephritis either confirmed by bacterial culture of pelvic urine (Group 1a) or presumed (1b). Group 2 included cats for which pyelonephritis was ruled out (with certainty: Group 2a or judged unlikely: Group 2b). SAA concentration was compared between groups, and accuracy of SAA for the diagnosis of pyelonephritis was calculated using a Receiver Operating Characteristic (ROC) curve analysis. RESULTS: Median SAA concentration was significantly higher in Group 1a (86.8 mg/L [73.3; 161.5]; n = 8) than in Group 2a (4 mg/L [1.8; 5.6], n = 19; P < .001) and in Group 2b (5.4 mg/L [3.1; 9.7], n = 113; P < .001). It was also significantly higher in Group 1b (98.8 mg/L [83.1; 147.3]; n = 9) than in Group 2b (P < .001) and Group 2a (P < .001). Optimal diagnostic cut-off for SAA concentration was 51.3 mg/L. yielding a sensitivity of 88% (95% confidence interval: [64%; 99%]) and a specificity of 94% (95% confidence interval: [88%; 97%]). CONCLUSIONS AND CLINICAL IMPORTANCE: Measurement of SAA could be used to rule out pyelonephritis in the case of low suspicion of the disease. Increased SAA concentration is suggestive of pyelonephritis despite a lack of specificity.


Assuntos
Doenças do Gato , Pielonefrite , Proteína Amiloide A Sérica , Animais , Gatos , Proteína Amiloide A Sérica/análise , Pielonefrite/veterinária , Pielonefrite/diagnóstico , Pielonefrite/sangue , Pielonefrite/urina , Doenças do Gato/diagnóstico , Doenças do Gato/sangue , Estudos Prospectivos , Feminino , Masculino , Sensibilidade e Especificidade , Biomarcadores/sangue
16.
Pediatr Transplant ; 28(3): e14761, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38628086

RESUMO

BACKGROUND: Renal transplantation is currently the best treatment option for patients with end-stage renal disease. However, the use of kidneys from donors under 6 years of age as a possibility to increase the organ pool in pediatric recipients remains a controversial matter. We aimed to investigate whether donor age is associated to the long-term functionality of the renal graft. Likewise, we analyzed the adaptation of the graft to the ascending functional requirements in the pediatric patient. METHODS: Retrospective study of the results obtained in pediatric recipients transplanted with grafts from donors between 3 and 6 years of age, comparing them with those of grafts from donors older than 6 years. Among the variables compared are cumulative graft survival, renal size, need for antiproteinuric therapy, GFR, incidence of rejection, pyelonephritis, renal failure and surgical or tumor complications. RESULTS: A total of 43 transplants were performed with donors aged 3-6 years, and 42 transplants with donors older than 6 years. Cumulative graft survival at 5 years was 81% for the younger donor group compared to 98% for the older donor group (p < .05). At 8 years, cumulative graft survival for donors <6 years was 74%. As for the mean estimated graft survival, it was 11.52 years for the younger donor group and 14.51 years for older donors. During follow-up, the younger donor group presented greater renal enlargement and need for antiproteinuric therapy. The older donors group had a higher GFR during the first year of follow-up, which then equalized in both groups. There were no statistically significant differences in the incidence of acute or chronic rejection, acute pyelonephritis, acute renal failure or surgical or tumor complications. CONCLUSIONS: Renal transplants of grafts equal to or less than 6 years old have good short-term and acceptable long-term results in pediatric patients.


Assuntos
Injúria Renal Aguda , Transplante de Rim , Neoplasias , Pielonefrite , Criança , Humanos , Transplante de Rim/efeitos adversos , Estudos Retrospectivos , Doadores de Tecidos , Pielonefrite/etiologia , Sobrevivência de Enxerto , Injúria Renal Aguda/etiologia , Rejeição de Enxerto/epidemiologia , Neoplasias/etiologia , Fatores Etários
18.
Am J Physiol Cell Physiol ; 326(5): C1451-C1461, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38525539

RESUMO

Acute pyelonephritis (APN) is most frequently caused by uropathogenic Escherichia coli (UPEC), which ascends from the bladder to the kidneys during a urinary tract infection. Patients with APN have been reported to have reduced renal concentration capacity under challenged conditions, polyuria, and increased aquaporin-2 (AQP2) excretion in the urine. We have recently shown increased AQP2 accumulation in the plasma membrane in cell cultures exposed to E. coli lysates and in the apical plasma membrane of inner medullary collecting ducts in a 5-day APN mouse model. This study aimed to investigate if AQP2 expression in host cells increases UPEC infection efficiency and to identify specific bacterial components that mediate AQP2 plasma membrane insertion. As the transepithelial water permeability in the collecting duct is codetermined by AQP3 and AQP4, we also investigated whether AQP3 and AQP4 localization is altered in the APN mouse model. We show that AQP2 expression does not increase UPEC infection efficiency and that AQP2 was targeted to the plasma membrane in AQP2-expressing cells in response to the two pathogen-associated molecular patterns (PAMPs), lipopolysaccharide and peptidoglycan. In contrast to AQP2, the subcellular localizations of AQP1, AQP3, and AQP4 were unaffected both in lysate-incubated cell cultures and in the APN mouse model. Our finding demonstrated that cellular exposure to lipopolysaccharide and peptidoglycan can trigger the insertion of AQP2 in the plasma membrane revealing a new regulatory pathway for AQP2 plasma membrane translocation, which may potentially be exploited in intervention strategies.NEW & NOTEWORTHY Acute pyelonephritis (APN) is associated with reduced renal concentration capacity and increased aquaporin-2 (AQP2) excretion. Uropathogenic Escherichia coli (UPEC) mediates changes in the subcellular localization of AQP2 and we show that in vitro, these changes could be elicited by two pathogen-associated molecular patterns (PAMPs), namely, lipopolysaccharide and peptidoglycan. UPEC infection was unaltered by AQP2 expression and the other renal AQPs (AQP1, AQP3, and AQP4) were unaltered in APN.


Assuntos
Aquaporina 2 , Aquaporina 3 , Pielonefrite , Escherichia coli Uropatogênica , Pielonefrite/metabolismo , Pielonefrite/microbiologia , Pielonefrite/patologia , Animais , Aquaporina 2/metabolismo , Camundongos , Escherichia coli Uropatogênica/metabolismo , Aquaporina 3/metabolismo , Aquaporina 3/genética , Doença Aguda , Infecções por Escherichia coli/metabolismo , Infecções por Escherichia coli/microbiologia , Infecções por Escherichia coli/patologia , Lipopolissacarídeos/toxicidade , Lipopolissacarídeos/farmacologia , Membrana Celular/metabolismo , Humanos , Aquaporina 4/metabolismo , Aquaporina 4/genética , Peptidoglicano/metabolismo , Rim/metabolismo , Rim/patologia , Camundongos Endogâmicos C57BL , Modelos Animais de Doenças
19.
Clín. investig. ginecol. obstet. (Ed. impr.) ; 51(1): [100912], Ene-Mar, 2024. ilus
Artigo em Inglês | IBECS | ID: ibc-229783

RESUMO

Introduction: Herlyn–Werner–Wünderlich syndrome is a uterine malformation characterized by uterus didelphys, obstructed hemivagina and ipsilateral renal agenesis. Clinical findings: The manifestation of the disease is widely diverse; it is usually diagnosed after menarche, with dysmenorrhea and abnormal uterine bleeding; it is also associated with infertility. Main diagnosis: Four clinical cases, their diagnosis are reported here. Therapeutic interventions and results: The treatment and results of these four patients are described here. Conclusion: When studying uterine malformation it is important to consider this rare disease to avoid possible complications and giving the patient a correct diagnose and treatment. The hysteroscopy resection of the longitudinal vaginal septum in those symptomatic patients with hematocolpos should be considered as a good option for treatment.(AU)


Introducción: El síndrome de Herlyn-Werner-Wünderlich es una malformación uterina que asocia útero didelfo, hemivagina obstruida total o parcialmente y agenesia renal ipsilateral. Hallazgos clínicos: La clínica que presenta este síndrome es muy diversa; se suele diagnosticar después de la menarquia cursando con dismenorrea y sangrado uterino anómalo; así mismo se asocia a infertilidad. Diagnósticos principales: Se presentan a continuación 4 casos clínicos, su diagnóstico y tratamiento mediante diversas técnicas. Intervenciones terapéuticas y resultados: Se describen en este manuscrito los tratamientos aplicados a estas pacientes y sus resultados. Conclusión: Ante el hallazgo de una malformación uterina es importante tener en cuenta esta entidad infrecuente, para evitar posibles complicaciones y proporcionar a la paciente un diagnóstico y tratamiento correctos. La resección histeroscópica del tabique vaginal longitudinal en aquellas pacientes sintomáticas con hematocolpos debe ser considerada como una buena opción de tratamiento.(AU)


Assuntos
Humanos , Feminino , Adulto Jovem , Adulto , Útero/anormalidades , Doenças dos Genitais Femininos , Dismenorreia , Rim Único , Pielonefrite , Ginecologia , Obstetrícia , Pacientes Internados , Exame Físico
20.
Hinyokika Kiyo ; 70(2): 55-59, 2024 Feb.
Artigo em Japonês | MEDLINE | ID: mdl-38447946

RESUMO

A 19-year-old man had been aware of dysuria and urinary incontinence since childhood but did not seek medical attention. He was diagnosed with acute pyelonephritis due to lower urinary tract dysfunction associated with spina bifida occulta and tethered cord syndrome (TCS) due to spinal cord lipoma. After placement of a urethral catheter and antibacterial chemotherapy, the patient was cured of acute pyelonephritis. He was treated with solifenacin and started clean self-intermittent catheterization (CIC). Shortly after the start of CIC, the acute pyelonephritis flared up again, and he was managed with a reinserted urethral catheter until an untethering operation. Preoperative video urodynamics showed that the bladder morphology was Ogawa classification grade III with vesicoureteral reflux (VUR) at 92 ml infusion. With the combination of an untethering operation and additional mirabegron, the functional bladder capacity was increased to 353 ml and VUR improved, allowing for safe urinary management of the CIC. TCS can be diagnosed at any age and requires appropriate urinary management and therapeutic intervention as early as possible after diagnosis.


Assuntos
Pielonefrite , Espinha Bífida Oculta , Incontinência Urinária , Refluxo Vesicoureteral , Masculino , Humanos , Criança , Adulto Jovem , Adulto , Bexiga Urinária , Refluxo Vesicoureteral/complicações , Refluxo Vesicoureteral/terapia
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