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1.
Biol Reprod ; 95(1): 7, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-27251091

RESUMO

Cyclin M1 (CNNM1) functions as a copper storage protein in neuronal cells. We report that Cnnm1 is expressed in mouse testis and brain and has a coding sequence of 1761 bp that encodes a 586 amino acid protein with a molecular weight of 66 kDa. Cnnm1 is expressed in the testes of mice from neonatal to adult stages with relatively higher levels in neonates. CNNM1 expression appeared to be restricted to c-KIT- and OCT3/4-positive cells in the testis, indicating that they are early spermatogonial cells. Spermatogonial stem cells in primary culture expressed Cnnm1, and their differentiation into embryoid body-like clusters in vitro resulted in the loss of Cnnm1 expression. Silencing of Cnnm1 in GC1-spg cells resulted in a significant reduction in the number of cells in G1 phase with concomitant increase in the numbers of cells in both S and G2/M phases. Further, retinoic acid downregulated the expression of Cnnm1 in GC1-spg cells. We conclude that CNNM1 is associated with stemness and self-renewal, and its downregulation triggers differentiation in spermatogonial cells in mouse.


Assuntos
Proteínas de Transporte de Cátions/metabolismo , Ciclo Celular/genética , Espermatogênese/genética , Espermatogônias/metabolismo , Células-Tronco/metabolismo , Testículo/metabolismo , Animais , Proteínas de Transporte de Cátions/genética , Regulação para Baixo/efeitos dos fármacos , Masculino , Camundongos , Fator 3 de Transcrição de Octâmero/genética , Fator 3 de Transcrição de Octâmero/metabolismo , Proteínas Proto-Oncogênicas c-kit/genética , Proteínas Proto-Oncogênicas c-kit/metabolismo , Espermatogônias/citologia , Espermatogônias/efeitos dos fármacos , Células-Tronco/citologia , Células-Tronco/efeitos dos fármacos , Testículo/citologia , Testículo/efeitos dos fármacos , Tretinoína/farmacologia
2.
J Minim Access Surg ; 10(3): 132-8, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25013329

RESUMO

OBJECTIVE: To evaluate the safety and efficacy of early rehabilitation after surgery program (ERAS) in patients undergoing laparoscopic assisted total gastrectomy. MATERIALS AND METHODS: This is a study where 47 patients who are undergoing lap assisted total gastrectomy are selected. Twenty-two (n = 22) patients received enhanced recovery programme (ERAS) management and rest twenty-five (n = 25) conventional management during the perioperative period. The length of postoperative hospital stay, time to passage of first flatus, intraoperative and postoperative complications, readmission rate and 30 day mortality is compared. Serum levels of C-reactive protein pre-operatively and also on post-op day 1 and 3 are compared. RESULTS: Postoperative hospital stay is shorter in ERAS group (78 ± 26 h) when compared to conventional group (140 ± 28 h). ERAS group passed flatus earlier than conventional group (37 ± 9 h vs. 74 ± 16 h). There is no significant difference in complications between the two groups. Serum levels of CRP are significantly low in ERAS group in comparison to conventional group. [d1 (52.40 ± 10.43) g/L vs. (73.07 ± 19.32) g/L, d3 (126.10 ± 18.62) g/L vs. (160.72 ± 26.18) g/L)]. CONCLUSION: ERAS in lap-assisted total gastrectomy is safe, feasible and efficient and it can ameliorate post-operative stress and accelerate postoperative rehabilitation in patients with gastric cancer. Short term follow up results are encouraging but we need long term studies to know its long term benefits.

3.
J Minim Access Surg ; 10(3): 139-43, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25013330

RESUMO

INTRODUCTION: The 'Rendezvous' technique consists of laparoscopic cholecystectomy (LC) standards with intra-operative cholangiography followed by endoscopic sphincterotomy. The sphincterotome is driven across the papilla through a guidewire inserted by the transcystic route. In this study, we intended to compare the two methods in a prospective randomised trial. MATERIALS AND METHODS: From 2005 to 2012, we enrolled 83 patients with a diagnosis of cholecysto-choledocolithiasis. They were randomised into two groups. In 'group-A',41 patients were treated with two stages management, first by pre-operative endoscopic retrograde cholangiopancreatography (ERCP) and common bile duct (CBD) clearance and second by LC. In 'group-B', 42 patients were treated with LC and intra-operative cholangiography; and when diagnosis of choledocholithiasis was confirmed, patients had undergone one stage management of by Laparo-endoscopic Rendezvous technique. RESULTS: In arm-A and arm-B groups, complete CBD clearance was achieved in 29 and 38 patients, respectively. Failure of the treatment in arm-A was 29% and in arm-B was 9.5%. In arm-A, selective CBD cannulation was achieved in 33 cases (80.5%) and in arm-B in 39 cases (93%). In arm-Agroup, post-ERCP hyperamylasia was presented in nine patients (22%) and severe pancreatitis in five patients (12%) versus none of the patients (0%) in arm-B group, respectively. Mean post-operative hospital stay in arm-A and arm-B groups are 10.9 and 6.8 days, respectively. CONCLUSION: One stage laparo-endoscopic rendezvous approach increases selective cannulation of CBD, reduces post-ERCP pancreatitis, reduces days of hospital stay, increases patient's compliance and prevents unnecessary intervention to CBD.

4.
Case Rep Surg ; 2013: 984594, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24222883

RESUMO

Acute gastric dilatation can have multiple etiologies which may lead to ischemia of the stomach. Without proper timely diagnosis and treatment, potentially fatal events such as gastric perforation, haemorrhage, and other serious complications can occur. Here we present a 36-year-old man who came to the casualty with pain abdomen and distension for 2 days. Clinically, abdomen was asymmetrically distended more in the left hypochondrium and epigastrium region. Straight X-ray abdomen showed opacified left hypochondrium with nonspecific gaseous distension of bowel. Exploratory laparotomy revealed dilated stomach with patchy gangrene over lesser curvature and fundic area. About 4 litres of brownish fluid along with semisolid undigested food particles was sucked out (mainly undigested pieces of meat). Limited resection of gangrenous areas and primary repair were done along with feeding jejunostomy. Necrosis of the stomach was confirmed on histopathology. The patient recovered well and was discharged on the tenth postoperative day.

5.
J Indian Med Assoc ; 111(10): 686-8, 691, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24968498

RESUMO

Seizures are frequent in patients over 60 years. Often, there is an underlying causative disorder, which aids in the treatment of these patients. To study the aetiological profile of seizures in patients aged 60 years and above, 100 elderly patients with seizures, attending medicine or neurology OPD or admitted under these departments for seizures were studied. A complete history and detailed examination followed by biochemical, haematological, serological tests and neuro-imaging were obtained. Additional studies including cerebrospinal fluid analysis, and toxicology tests were done as and when indicated. There was no gender difference noted in the type or in the aetiology of the seizures. Stroke (31%) was the most common cause of seizures, followed by metabolic derangements (19%). In 24% of the patients, no cause could be found. Infection caused seizures in a significant number of patients when compared to other studies in the literature. Generalised tonic clonic seizure was the most common type of seizure, again a finding differing from many previous studies. The fact that the population size was smaller and the majority of the patients were in the "younger elderly" ie, age group of < 75 years could have contributed to the differing result. The commonest aetiology of seizure in the elderly was found to be cerebrovascular accident and a significant number of patients were found to have an infectious cause for their seizures.


Assuntos
Convulsões/etiologia , Idoso , Idoso de 80 Anos ou mais , Infecções do Sistema Nervoso Central/complicações , Feminino , Humanos , Masculino , Doenças Metabólicas/complicações , Pessoa de Meia-Idade , Neoplasias/complicações , Estudos Prospectivos , Convulsões/induzido quimicamente , Acidente Vascular Cerebral/complicações
6.
Indian J Crit Care Med ; 13(2): 74-8, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19881187

RESUMO

CONTEXT: Sepsis is a serious health problem in the elderly with a high degree of mortality. There is very limited data available in elderly subjects regarding the markers for sepsis. Development of good markers will help in overall management and prediction of sepsis. OBJECTIVES: Serial estimation of Interleukin-6 (IL-6) and Tumor Necrosis Factor-Alpha (TNF-alpha) and their correlation with mortality in sepsis in elderly patients and to determine the influence of gender on cytokine production and mortality in elderly patients with sepsis. SETTINGS AND DESIGN: The prospective study was conducted at our tertiary care center from April 2007 to September 2008. Elderly Patients satisfying the Systemic Inflammatory Response Syndrome (SIRS) criteria were included. METHODS AND MATERIAL: TNF-alpha and IL-6 were estimated in 30 elderly patients admitted to our intensive care unit with SIRS and sepsis. The estimations were done on day 1, 3 and 7 of admission. STATISTICAL ANALYSIS USED: Student and paired 't' tests, and ANOVA, which were further followed up by post-hoc 't' tests with Bonferroni correction using SPSS. RESULTS: Reducing levels of IL-6 levels from day 1 to 7 was found in the survivor group. TNF-alpha level was significantly low on day 1 in the nonsurvivor female group. CONCLUSIONS: Serial estimation of cytokines in elderly patients with sepsis will help in prediction of mortality. Female gender was an independent predictor of increased morality in critically ill patients with sepsis.

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