Effect of Diabetes on the Male Reproductive System­A Histomorphological Study

Introduction Type 1 diabetes is an autoimmune disorder characterized by lack of insulin production by the ß cells of the pancreas. This lack of insulin causes a variety of systemic effects on the metabolism of the body, one of which is reproductive dysfunction. The present study investigates the effects of diabetes on the male reproductive system of streptozotocin (STZ)-induced diabetic rats. Material and Methods A total of 18 adult male Wistar rats weighing between 250 and 300 g were included in the present study. The animals were divided into normal and diabetic groups. The diabetic group was further subdivided into 2 subgroups with durations of 24 and 48 days. A single dose of STZ (40 mg/kg body weight) was administrated intraperitoneally to the animals of the diabetic group. After the planned duration, the testes and epididymides were dissected, and their gross weight was measured. The tissues were then processed for histological study. Results The gross weight of the testes and epididymides in diabetic rats at 24 and 48 days showed a decrease in comparison to the control. (p < 0.01 for testes and epididymides). Diabetic animals presented a significant decrease in the diameter of the seminiferous tubules compared with the control group (p < 0.01). The epididymides in the diabetic groups showed a considerable reduction in the tubular surface area compared with the control group (p < 0.01). There was also a reduction in the mean diameter, which was measured using the maximum and minimum diameter of the tubules (p < 0.01). Conclusion The present study is an insight into the adverse effects that diabetes can have on the tissue structure of the testes, of the epididymides, and ultimately on the process of spermatogenesis.

A Cadaveric Study Of The Internal Occipital Crest And Vermian Fossa With Its Clinical Significance

Background: The anatomical variabilities of the internal occipital crest (IOC) and vermian fossa (VF) may influencethe related dural venous sinuses and further effect the flow of the cerebrospinal fluid. It is also associated withthe pathologies around the foramen magnum like Arnold Chiari malformation, certain cases of cerebellar corticaldysplasia.Aim: The present study was designed to explore and evaluate the morphological and morphometric details of theIOC and VF.Materials and Methods: The study was conducted on 40 adult cadavers (23 males & 17 females). The morphologyand morphometry of IOC and VF were studied. Based on the observations, the VF was classified into five types:Type 1- classical (well defined fossa), Type II-short triangular, Type III- elongated triangular, Type IV-quadrangularand Type V-deviated.Results: The IOC was found to be variable both in terms of morphology and morphometry. The morphologicalobservations included varied shapes, i.e., sharp (65%), blunt (30 %) and ill-defined (5 %). The length of the IOCwas also variable with a mean length of 2.97 ± 0.16 cm. The mean width at upper, middle and lower levels were0.9 ± 0.10 cm, 0.75 ± 0.17 cm, 1.10 ± 0.12 cm respectively.The incidence of the VF was found to be about 80%. The VF was classified into types based on its varied shape:classical (Type I ;56.25 %), short triangular (Type II ;21.87%), elongated triangular (Type III;12.5%) and quadrangular(Type 1V;6.25 %) respectively. In one specimen, the VF was deviated to the left side (type V ;3.12%). The mean lengthand width of the fossa were 1.67±0.34 cm and 1.80±0.34 cm respectively.Conclusion: The present study on the morphology and morphometry of the IOC and the VF may serve as databaseand further help clinicians to improve the diagnosis and therapeutic performances in the posterior cranialfossa.

Additional muscle slip of bicipital aponeurosis and its anomalous relationship with the median cubital vein

The cubital region of the arm is a common site for recording blood pressure, taking blood for analysis and administering intravenous therapy and blood transfusions. During the routine dissection of a 70-year-old male cadaver at the Kasturba Medical College, Manipal, Karnataka, India, in 2015, it was observed that the aponeurotic insertion of the biceps brachii muscle divided into two slips. The medial slip fused normally with the deep fascia of the forearm, while flexor carpi radialis muscle fibres originated from the lateral slip. There was also a single vein in the forearm, the cephalic vein, which bifurcated to form the median cubital vein and the cephalic vein proper. The median cubital vein, further reinforced by the radial vein, passed deep to the two slips of the bicipital aponeurosis and then continued as the basilic vein. During venepuncture, medical practitioners should be aware of potential cubital fossa variations which could lead to nerve entrapment syndromes

A cadaveric study of the testicular artery and its clinical significance / Um estudo da artéria testicular em cadáveres e sua relevância clínica

Abstract Background Knowledge of testicular artery variations is vital to ensure that they are not neglected during a variety of different operative techniques, since damage can cause testicular atrophy. Objectives The present study was therefore intended to identify variants in the origin and course of the testicular arteries. An attempt was made to classify the arteries based on their various origins. Methods This study examined 42 formalin-fixed cadavers of 40 to 70-year-old adult males. Variant origins of the testicular artery were identified and classified. Variations in the origin and course of the artery were colored, photographed, and documented. The distances between the origins of the testicular arteries and the mid-points of the origins of the renal arteries were measured. Results Testicular arteries were classified into four categories on the basis of origin. This variability was defined in relation to the renal and inferior mesenteric arteries. The mean distance between the origin of the testicular artery and the mid-point of the origin of the renal artery were 3.08 and 3.47 cm, on the right and left sides respectively. Variations were almost exclusively found on the left side. The variations observed included multiple arterial twigs forming the testicular artery, suprarenal arteries arising from the testicular artery, and testicular artery duplication. Conclusion This study provides an insight into variations in the testicular artery and proposes a classification which could help surgeons during a variety of procedures on the male abdomen and pelvis.

Resumo Contexto O conhecimento de variações da artéria testicular é vital para assegurar que essas artérias não serão negligenciadas durante a realização de diferentes técnicas operatórias, já que qualquer dano poderia causar atrofia testicular. Objetivos Este estudo teve como objetivo identificar variações na origem e no trajeto das artérias testiculares. Foi feita uma tentativa de classificar as artérias com base em suas diferentes origens. Métodos Este estudo examinou 42 cadáveres de adultos do sexo masculino com idade entre 40 e 70 anos preservados em formol. As diferentes origens da artéria testicular foram identificadas e classificadas. Variações na origem e no trajeto da artérias foram coloridas, fotografadas e documentadas. Foram medidas as distâncias entre a origem das artérias testiculares e o ponto médio da origem das artérias renais. Resultados As artérias testiculares foram classificadas em quatro categorias com base em sua origem. Essa variabilidade foi definida com relação às artérias renal e mesentérica inferior. A distância média entre a origem da artéria testicular e o ponto médio da origem da artéria renal foi de 3,08 e 3,47 cm nos lados direito e esquerdo, respectivamente. As variações foram encontradas quase exclusivamente no lado esquerdo. As variações observadas incluíram múltiplos ramúsculos formando a artéria testicular, artérias suprarrenais surgindo a partir da artéria testicular, e duplicação da artéria testicular. Conclusão Este estudo traz informações sobre variações da artéria testicular e propõe uma classificação que poderia ajudar os cirurgiões durante diferentes procedimentos realizados no abdome e na pelve de pacientes do sexo masculino.

Variations in the cutaneous innervation of the dorsum of foot – A case report.

The skin on the dorsum of the foot is innervated by the superficial peroneal, deep peroneal, sural and saphenous nerves. Most of the dorsum is supplied by the superficial peroneal nerve. Here we report a variation in the sensory innervation of the dorsum of the left foot in a 52 years old male cadaver. The skin of the first inter-digital cleft i.e., the cleft between the great and second toes which is normally innervated by the deep peroneal nerve was also supplied by the superficial peroneal nerve. A communication between the superficial and the deep peroneal branches were also observed prior to innervation. In addition, the fourth inter digital cleft i.e., cleft between the fourth and fifth toes which is normally innervated by the superficial peroneal nerve was supplied by the sural nerve. Cutaneous nerves on the dorsum of foot are at risk for iatrogenic damage while performing arthroscopy, local anaesthetic block, and surgical approach to the fibula, open reduction and internal fixation of lateral malleolar fractures, application of external fixators, elevation of a fasciocutaneous or fibular flaps for grafting, surgical decompression of neurovascular structures, or miscellaneous surgery on leg, foot and ankle. Therefore a detailed knowledge about the variations in the pattern of cutaneous innervation of dorsum of foot may decrease the damage to these nerves during operative procedures.