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Abstract Many soil microorganisms' i.e., bacteria and fungi produce secondary metabolites called antibiotics. These are used for the treatment of some of the bacterial, fungal and protozoal diseases of humans. There is a need for isolation of a broad spectrum of antibiotics from microorganisms due to the emergence of antibiotic resistance. In the present study two antibiotic producing bacteria Klebsiella pneumoniae and Bacillus cereus were isolated from pharmaceutical and poultry feed industry of Hattar, Haripur Pakistan. Total 10 waste samples were collected from different industries (Marble, Ghee, Soap, Mineral, Steel, Poultry Feed, Pharmaceutical, Qarshi, Cosmetic and Glass). Thirty-three bacterial strains were isolated from industrial wastes of these ten different industries. Fourteen out of thirty-three bacterial strains exhibited antimicrobial activities against at least one of the test microbes considered in this study including Escherchia coli, Staphylococcus aureus and Salmonella typhi. The bacteria were isolated by standard serial dilution spread plate technique. Morphological characterization of the isolates was done by Gram staining. Nine bacterial isolates out of fourteen were initially identified as B. cereus and five as K. pneumoniae through biochemical characterization. The antibacterial activities were tested by well diffusion method. Maximum number of antibiotic producing bacteria were isolated from pharmaceutical and poultry feed industry based on the results of primary screening, the most potential isolates S9, S19, S20, S22 and S23 were selected for secondary screening. The maximum activity against E. coli and S. aureus was recorded by bacterial isolate S19 i.e zones of inhibition of 6.5mm and 9mm while S20 showed 7.5mm and 6mm zones respectively. Molecular identification was carried out on the basis of 16S rRNA sequence analysis. Finally, the isolates were identified as B. cereus accession number LC538271and K. pneumoniae accession number MT078679. Analysis of bacterial extract S20 through GC-MS indicated the presence of 8 compounds of diverse nature and structure. Present study suggests that wastes of pharmaceutical and poultry feed industry may have antibiotic producing bacteria. These bacteria could be utilized for the production of antibiotics. B. cereus and K. pneumoniae isolated from wastes of poultry feed and pharmaceutical industries have the potential to produce antibiotics and could be used to control the microbial growth.
Resumo Muitos microrganismos do solo, ou seja, bactérias e fungos produzem metabólitos secundários chamados antibióticos. Eles são usados para tratamento de algumas doenças bacterianas, fúngicas e protozoárias em humanos. Há necessidade de isolamento de um amplo espectro de antibióticos de microrganismos devido ao surgimento de resistência aos antibióticos. No presente estudo, duas bactérias produtoras de antibióticos, Klebsiella pneumoniae e Bacillus cereus, foram isoladas da indústria farmacêutica e de ração avícola de Hattar, Haripur, Paquistão. Um total de 10 amostras de resíduos foi coletado de diferentes indústrias (mármore, ghee, sabão, mineral, aço, ração para aves, farmacêutica, Qarshi, cosmética e vidro). Trinta e três cepas bacterianas foram isoladas de resíduos industriais dessas dez diferentes indústrias. Quatorze das 33 cepas bacterianas exibiram atividades antimicrobianas contra pelo menos um dos micróbios de teste considerados neste estudo, incluindo Escherchia coli, Staphylococcus aureus e Salmonella typhi. As bactérias foram isoladas pela técnica de placa de diluição em série padrão. A caracterização morfológica dos isolados foi feita por coloração de gram. Nove isolados bacterianos de 14 foram inicialmente identificados como B. cereus e cinco como K. pneumoniae por meio de caracterização bioquímica. As atividades antibacterianas foram testadas pelo método de difusão em poço. O número máximo de bactérias produtoras de antibióticos foi isolado da indústria farmacêutica e de ração avícola com base nos resultados da triagem primária, os isolados mais potenciais S9, S19, S20, S22 e S23 foram selecionados para a triagem secundária. A atividade máxima contra E. coli e S. aureus foi registrada pelo isolado bacteriano S19, ou seja, zonas de inibição de 6,5 mm e 9 mm, enquanto S20 mostrou zonas de 7,5 mm e 6 mm, respectivamente. A identificação molecular foi realizada com base na análise da sequência 16S rRNA. Finalmente, os isolados foram identificados como B. cereus número de acesso LC538271 e K. pneumoniae número de acesso MT078679. A análise do extrato bacteriano S20 por meio de GC-MS indicou a presença de oito compostos de natureza e estrutura diversas. O presente estudo sugere que resíduos da indústria farmacêutica e de ração para aves podem conter bactérias produtoras de antibióticos. Essas bactérias podem ser utilizadas para a produção de antibióticos B. cereus e K. pneumoniae isolados de resíduos de rações de aves e indústrias farmacêuticas têm potencial para produzir antibióticos e podem ser usados para controlar o crescimento microbiano.
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Humans , Staphylococcus aureus , Industrial Waste , RNA, Ribosomal, 16S , Plant Extracts , Microbial Sensitivity Tests , Escherichia coli , Gas Chromatography-Mass Spectrometry , Anti-Bacterial Agents/pharmacologyABSTRACT
Abstract Quality evaluation of commercial inoculants is essential to warrant an adequate cropresponse to inoculation within a biosecurity framework. In this sense, this work is aimed at standardizing and validating the drop plate method for the enumeration of Azospirillum viable cellsas an alternative to the spread plate technique, which is currently proposed in the consensusprotocol of the REDCAI network. Between 14 and 25 private and public laboratories partici-pated in three independent trials. We obtained consistent and robust results that allowed toconfirm that both techniques are equivalent, concluding that the drop plate method is an alternative enumeration technique that is adequate to be included in the abovementioned consensusprotocol.
Resumen La evaluación de la calidad de los inoculantes comerciales es fundamental para garantizar una adecuada respuesta de los cultivos a la inoculación dentro de un marco de bioseguridad. En este sentido, el objetivo de este trabajo fue la estandarización y validación de la técnica de la microgota para la cuantificación de Azospirillum como metodología alternativa a la técnica de siembra en superficie, propuesta actualmente en el protocolo consenso de la Red de Calidad de Inoculantes, REDCAI. Entre 14 y 25 laboratorios, tanto privados como públicos, participaron de tres ensayos independientes. A partir de ellos se obtuvieron resultados reproducibles y robustos que permiten confirmar que ambas técnicas son equivalentes y concluir que la técnica de recuento por la microgota es una alternativa adecuada para ser incluida dentro del mencionado protocolo consenso.
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The concept of spread through air spaces (STAS) was first proposed in the World Health Organization (WHO) Classification of Tumors of the Lung, Pleura, Thymus and Heart (version 2015). STAS is defined as the micropapillary clusters, solid nests or single cells of tumor that exist in the air spaces of the surrounding lung parenchyma beyond the edge of the main tumor. Meanwhile, apart from the traditional invasion modes of lung adenocarcinoma (interstitial, visceral pleura and lym-phovascular invasion), STAS has been identified as the fourth invasion mode of lung adenocarcinoma. In recent years, the research on STAS has been a hot spot in the field of lung adenocarcinoma. The existence of STAS is related to lung cancer histopathology, gene mutation and other factors, and many studies have also confirmed that it can be used as an independent factor for tumor recurrence and prognosis. However, according to some studies, human factors can cause morphological artifacts of STAS, which still needs to be distinguished in clinical work. This paper reviews the research progress of STAS classification, related pathological features, genetic status changes, and human factors that may cause STAS artifacts. .
Subject(s)
Adenocarcinoma of Lung/pathology , Humans , Lung Neoplasms/pathology , Neoplasm Invasiveness , Neoplasm Recurrence, Local , Neoplasm Staging , Prognosis , Retrospective StudiesABSTRACT
This paper reviews the coronavirus species and post-infection symptoms of aquatic animals such as marine mammals, ferrets, fish, and waterfowl, analyzes the activity and transmission of coronaviruses in the aquatic environment, compares the homology of aquatic coronaviruses with SARS-CoV-2, and assesses the zoonotic risk. The results showed that aquatic animal coronaviruses were mainly α, γ, δ coronavirus and Alphaletovirus. SARS⁃CoV⁃2 is more similar to marine mammal coronavirus (51.90%-52.30%) and less similar to fish, mink, duck and goose coronavirus (43.30%-47.90%). The risk of transmission of coronaviruses carried by minks and marine mammals to humans is relatively greater, and from fish and waterfowl to humans is relatively small. By elaborating on the situation of coronavirus infection in aquatic animals, this paper is conducive to solving related issues such as the prevention and control of coronavirus epidemics, which is of great significance to ecosystems and public health.
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@#Objective To explore the potential role of tumor spread through air spaces (STAS) as a prognostic indicator of non-small cell lung cancer (NSCLC) through meta-analysis. Methods PubMed, EMbase and Web of Science, from inception to February 2022 were searched by computer about the research of the 5-year overall survival (OS) and recurrence free survival (RFS) of NSCLC patients with or without STAS. The Newcastle-Ottawa scale (NOS) was used to evaluate the quality of each study. Results Totally 13 published articles were included with 4 647 patients, and 1 424 (30.6%) patients had STAS. The NOS score of all studies≥6 points. The meta-analysis showed that compared with the NSCLC patients without STAS, those with STAS had a worse prognosis of 5-year RFS, and the combined HR was 1.89 (95%CI 1.61-2.23); they had a shorter 5-year OS, and the combined HR was 2.25 (95%CI 1.79-2.84). There was no statistical heterogeneity among studies. Conclusion The presence of STAS may be a poor prognostic factor for patients with NSCLC, and enough attention should be paid. The STAS should be recorded in the pathological report to guide the comprehensive treatment and evaluate the prognosis of patients.
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OBJECTIVE@#To predict the trends for fine-scale spread of Oncomelania hupensis based on supervised machine learning models in Shanghai Municipality, so as to provide insights into precision O. hupensis snail control.@*METHODS@#Based on 2016 O. hupensis snail survey data in Shanghai Municipality and climatic, geographical, vegetation and socioeconomic data relating to O. hupensis snail distribution, seven supervised machine learning models were created to predict the risk of snail spread in Shanghai, including decision tree, random forest, generalized boosted model, support vector machine, naive Bayes, k-nearest neighbor and C5.0. The performance of seven models for predicting snail spread was evaluated with the area under the receiver operating characteristic curve (AUC), F1-score and accuracy, and optimal models were selected to identify the environmental variables affecting snail spread and predict the areas at risk of snail spread in Shanghai Municipality.@*RESULTS@#Seven supervised machine learning models were successfully created to predict the risk of snail spread in Shanghai Municipality, and random forest (AUC = 0.901, F1-score = 0.840, ACC = 0.797) and generalized boosted model (AUC= 0.889, F1-score = 0.869, ACC = 0.835) showed higher predictive performance than other models. Random forest analysis showed that the three most important climatic variables contributing to snail spread in Shanghai included aridity (11.87%), ≥ 0 °C annual accumulated temperature (10.19%), moisture index (10.18%) and average annual precipitation (9.86%), the two most important vegetation variables included the vegetation index of the first quarter (8.30%) and vegetation index of the second quarter (7.69%). Snails were more likely to spread at aridity of < 0.87, ≥ 0 °C annual accumulated temperature of 5 550 to 5 675 °C, moisture index of > 39% and average annual precipitation of > 1 180 mm, and with the vegetation index of the first quarter of > 0.4 and the vegetation index of the first quarter of > 0.6. According to the water resource developments and township administrative maps, the areas at risk of snail spread were mainly predicted in 10 townships/subdistricts, covering the Xipian, Dongpian and Tainan sections of southern Shanghai.@*CONCLUSIONS@#Supervised machine learning models are effective to predict the risk of fine-scale O. hupensis snail spread and identify the environmental determinants relating to snail spread. The areas at risk of O. hupensis snail spread are mainly located in southwestern Songjiang District, northwestern Jinshan District and southeastern Qingpu District of Shanghai Municipality.
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Animals , Bayes Theorem , China/epidemiology , Ecosystem , Gastropoda , Supervised Machine LearningABSTRACT
This study aimed to quantitatively assess the effectiveness of the Wuhan lockdown measure on controlling the spread of coronavirus diesase 2019 (COVID-19). : Firstly，estimate the daily new infection rate in Wuhan before January 23，2020 when the city went into lockdown by consulting the data of Wuhan population mobility and the number of cases imported from Wuhan in 217 cities of Mainland China. Then estimate what the daily new infection rate would have been in Wuhan from January 24 to January 30th if the lockdown measure had been delayed for 7 days，assuming that the daily new infection in Wuhan after January 23 increased in a high，moderate and low trend respectively (using exponential, linear and logarithm growth models). Based on that，calculate the number of infection cases imported from Wuhan during this period. Finally，predict the possible impact of 7-day delayed lockdown in Wuhan on the epidemic situation in China using the susceptible-exposed-infectious-removed (SEIR) model. : The daily new infection rate in Wuhan was estimated to be 0.021%，0.026%，0.029%，0.033% and 0.070% respectively from January 19 to January 23. And there were at least 20 066 infection cases in Wuhan by January 23，2020. If Wuhan lockdown measure had been delayed for 7 days，the daily new infection rate on January 30 would have been 0.335% in the exponential growth model，0.129% in the linear growth model，and 0.070% in the logarithm growth model. Correspondingly，there would have been 32 075，24 819 and 20 334 infection cases travelling from Wuhan to other areas of Mainland China，and the number of cumulative confirmed cases as of March 19 in Mainland China would have been 3.3-3.9 times of the officially reported number. Conclusions: Timely taking city-level lockdown measure in Wuhan in the early stage of COVID-19 outbreak is essential in containing the spread of the disease in China.
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COVID-19 , China/epidemiology , Cities , Communicable Disease Control , Humans , SARS-CoV-2ABSTRACT
The cross-cultural sensitivity scale (ISS) and the self-made cross-cultural communication Traditional Chinese Medicine (TCM) professional ability test were used to investigate the ability of 151 young and middle-aged doctors (under 45 years old) in Xiyuan Hospital of Chinese Academy of Chinese Medicine. SPSS 21.0 was used to describe the statistics of the questionnaire data. ANOVA was used to analyze the factors that affected the capability, and Pearson to analyze the relevance of the internal structure of this capability. The final score of the test was 3.73±0.54 points (5 points in total). The capability of spreading TCM of young and middle-aged doctors had a significant positive correlation with their individual professional background, English language proficiency, and oversea experience ( P<0.05). The result showed that the correlation among 5 dimensions of cross-cultural sensitivity was significant, and there was a significant correlation between cross-cultural sensitivity and professional competence to spread TCM ( r>0.5, P<0.01). The young and middle-aged doctors in this hospital had an overall high score in this survey, and it was necessary to improve interaction enjoyment and strengthen professional English training. When selecting relevant talents, it should be noted that those with educational background of TCM and integrated TCM and western medicine were more suitable as workers to spread TCM. Educational background, English ability, and relevant experience showed a significant impact on capability to spread TCM. It was recommended to carry out quantitative testing of the capability to spread TCM of young and middle-aged doctors widely. When selecting talents for cross-cultural spreading of TCM, attention should be paid on factors that related to the capability.
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@#Respiratory virus infection remains a major cause of morbidity and mortality in patients with respiratory diseases. The respiratory virus is predominantly spread by air or droplet through the exposed mucosa. Meanwhile the ocular mucosa is also exposed to air, so more and more attention has been paid to the correlation between respiratory virus and human ocular diseases. In this paper, we will summarize the research progress of the relationship between some familiar respiratory viruses and human eyes.
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@#Objective To investigate the predictive value of preoperative radiological features on spread through air spaces (STAS) in stage cⅠA lung adenocarcinoma with predominant ground-glass opacity, and to provide a basis for the selection of surgical methods for these patients. Methods The clinical data of 768 patients with stage cⅠA lung adenocarcinoma undergoing operation in our hospital from 2017 to 2018 were reviewed, and 333 early stage lung adenocarcinoma patients with predominant ground-glass opacity were selected. There were 92 males and 241 females, with an average age of 57.0±10.0 years. Statistical analysis was performed using SPSS 22.0. Results STAS-positive patients were mostly invasive adenocarcinoma (P=0.037), and had more micropapillary component (P<0.001) and more epidermal growth factor receptor (EGFR) gene mutations (P=0.020). There were no statistically significant differences between the STAS-positive and STAS-negative patients in other clinicopathological features. Univariate analysis showed that the maximum diameter of tumor in lung window (P=0.029), roundness (P=0.035), maximum diameter of solid tumor component in lung window (P<0.001), consolidation/tumor ratio (CTR, P<0.001), maximum area of the tumor in mediastinum window (P=0.001), tumor disappearance ratio (TDR, P<0.001), average CT value (P=0.001) and lobulation sign (P=0.038) were risk factors for STAS positive. Multivariate logistic regression analysis showed that the CTR was an independent predictor of STAS (OR=1.05, 95%CI 1.02 to 1.07, P<0.001), and the area under the receiver operating characteristic (ROC) curve was 0.71 (95%CI 0.58 to 0.85, P=0.002). When the cutoff value was 19%, the sensitivity of predicting STAS was 66.7%, and the specificity was 75.2%. Conclusion CTR is a good radiological feature to predict the occurrence of STAS in early lung adenocarcinoma with predominant ground-glass opacity. For the stage cⅠA lung adenocarcinoma with predominant ground-glass opacity and CTR ≥19%, the possibility of STAS positive is greater, and sublobar resection needs to be carefully considered.
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Objective: To investigate the clinicopathological risk factors of spread through air space (STAS) in stage A lung adenocarcinoma. Methods: The clinical data of patients with stage A lung adenocarcinoma who underwent lung surgery in Shanghai Chest Hospital, Shanghai Jiao Tong University from Jan. 2018 to Oct. 2019 were retrospectively collected. According to whether STAS happened, the patients were divided into STAS group and non-STAS group. Univariate analysis and binary Logistic regression analysis were used to analyze the risk factors of STAS in stage A lung adenocarcinoma between the two groups. Results: A total of 1 365 patients with stage A lung adenocarcinoma were included, including 1 312 patients without STAS and 53 patients with STAS. Univariate analysis showed that there were significant differences in gender and major subtypes of lung adenocarcinoma between the two groups (both P=0.000), but there was no significant difference in T stage between the two groups. Binary Logistic regression analysis showed that male and non-lepidic subtypes were independent risk factors. Conclusion: For the treatment of stage A lung adenocarcinoma, especially those with micropapillary subtype, the clinicians should pay attention to the possibility of STAS.
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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) rapidly spread around the world during 2020, but the precise time in which the virus began to spread locally is difficult to trace for most countries. Here, we estimate the probable onset date of the community spread of SARS-CoV-2 for heavily affected countries from Western Europe and the Americas on the basis of the cumulative number of deaths reported during the early stage of the epidemic. Our results support that SARS-CoV-2 probably started to spread locally in all western countries analysed between mid-January and mid-February 2020, thus long before community transmission was officially recognised and control measures were implemented.
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Humans , Pneumonia, Viral/epidemiology , Coronavirus Infections/epidemiology , Community-Acquired Infections/epidemiology , Pneumonia, Viral/transmission , Americas/epidemiology , Coronavirus Infections/transmission , Community-Acquired Infections/transmission , Community-Acquired Infections/virology , Europe/epidemiology , Pandemics , Betacoronavirus , SARS-CoV-2 , COVID-19ABSTRACT
Before and after the construction of the South-to-North Water Diversion Project, a number of studies have been conducted to assess the possibility of the northward spread of Oncomelania snails and schistosomiasis caused by the construction of the project, the survival and reproduction of snails moved north of their natural distribution, and the transmission of schistosomiasis by the survival snails moved north of their natural distribution. The effect of the South-to-North Water Diversion Project on the transmission of schistosomiasis is restricted along the Jiangsu section of the eastern route project of the South-to-North Water Diversion Project, and the Water Transfer Project from the Yangtze River to Han River of the middle route project of the South-to-North Water Diversion Project. It has been demonstrated the water diversion pattern via the pump stations and the ecological conditions in the water transfusion channels of the South-to-North Water Diversion Project are unlikely to result in the northward spread of Oncomelania snails or schistosomiasis, and no snails or schistosomiasis spread was found during the surveillance before and after the operation of the eastern route project of the South-to-North Water Diversion Project, and the Water Transfer Project from the Yangtze River to Han River of the middle route project of the South-to-North Water Diversion Project. Nevertheless, sustainable surveillance of Oncomelania snails along the South-to-North Water Diversion Project will provide scientific support and safety guarantee for the construction and operation of the subsequent projects.
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Oncomelania snail is the only intermediate host of Schistosoma japonicum, and controlling snail breeding and spread is an important intervention for schistosomiasis control. This review summarizes factors affecting snail spread, characteristics of snail spread in various endemic areas, high-risk environments of snail spread and monitoring methods of snail spread, so as to provide insights into the prevention of snail spread.
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The cross sectional comparative study was aimed at assessing the awareness BCG Vaccine and Spread of tuberculosis among Urban and Rural Population. AIM:-1. To Study the awareness of BCG Vaccine among urban and rural study population and compare between urban and rural study population. 2. To study the knowledge of spread of tuberculosis and compare among Urban and Rural Population. 200 odd patients from Urban and Rural area were included. 87 participants out of 200 were of the opinion that BCG gives complete protection. Out of which, 74.72%participants were from urban and 25.28% were from rural area. 79 participants were in the opinion of partial protection. Out of which, 62.02% (49) were rural participants and 37.98% (30) were urban participants. Regarding knowledge of tuberculosis, misconception was seen more or less in both the population. It is a need of time to increase awareness of knowledge of tuberculosis.
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Visceral malignancies often present as cutaneous lesion and are an important clue towards the diagnosis. Authors report a case of a 64 years old male, who presented to us with right hemiparesis and multiple purple-red skin lesions. Systematic evaluation, thorough history and histological examination of the skin lesion showing the characteristic lesion lead to a final diagnosis of Renal Cell Carcinoma. Although in the history and physical examination there was no sign of Renal Cell Carcinoma, but eventually the case turned out to be an extensively spread cancer. This kind of Cutaneous lesions in a case of RCC is a rare phenomenon and has not been frequently mentioned in the previous literature, thus this case reminds us about the importance of a detailed clinical look out in each and every patient and various clues to make a correct and timely diagnosis of systemic diseases. The list of visceral malignancies causing cutaneous metastasis is quite long and requires a battery of test to diagnose the same.
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Background: Juvenile nasopharyngeal angiofibroma (JNA) is a tumor that shows a predictable spreading pattern. This study showed the characteristic MRI findings and its pattern of spread of JNA for diagnosis.Methods: This study consisted of 6 cases of JNA for diagnosis and pattern of spreading by using MRI as modality of choice.Results: The total patients included in study were 6 with age range from 9-20 years and all were male. The classification system used in the study was Radkowski and Onerci system. The tumor showed isointensity to muscle and hyperintensity on T1 and T2 sequences respectively on MR imaging. All lesions had internal signal void regions and showed intense enhancement after IV contrast administration. Diffusion restriction was not an associated features however high values of ADC were noted. The MR angiography of three patients showed blood supply of tumor was mainly from the internal maxillary branch of external carotid artery. The treatment was surgical excision of tumor which was decided on MRI Diagnosis and pattern of Extension described in Radiological report.Conclusions: MRI is a modality of choice for diagnosis and extension of JNA based on clinical and radiological findings, without performing a biopsy.
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Introduction: Columnar cell lesions (CCLs) of the breastcomprise a spectrum of benign to atypical entities that have incommon variably dilated terminal duct lobular units lined bycolumnar epithelial cells with prominent apical cytoplasmicsnouts. They are increasingly being encountered in breastbiopsies because their associated microcalcifications aredetected on mammographic screening. Current study aimed toknow the proportion and significance of columnar cell lesionsseen along with carcinoma breast.Material and methods: Excision biopsy specimens of thebreast which included both lumpectomies and mastectomieswere studied in the department of pathology. Postchemotherapy specimens were excluded from the study.5sections each were taken from adjacent breast tissuesand studied for columnar cell lesions after staining withhematoxylin, and eosin.100 cases were included in this study.Results: Majority of the cases were diagnosed as IDC grade 2.One or the other columnar cell lesions were seen in the majorityof invasive ductal carcinomas. CCLs may be characterized bya single layer of columnar cells (columnar cell change [CCC]),multiple layers with stratification and apical tufting (columnarcell hyperplasia [CCH]), or monomorphic cells with cytologicatypia (flat epithelial atypia [FEA]). The differentiationbetween CCC, CCH, and FEA is clinically significant: CCCand CCH are considered benign lesions, whereas FEA canbe associated with, and even a precursor to, low-grade ductalcarcinoma in situ and atypical ductal hyperplasia. Of the total12 cases of grade 2 IDC, 8 cases (66.6%) showed columnarcell change, 4 of them showed columnar cell hyperplasia(33.3%) and 9 of them showed both flat epithelial atypia andductal carcinoma in-situ changes (75%).Conclusion: A consistent correlation exists between columnarcell lesions and Carcinoma Breast which is evidenced by thepresence of such lesions in diagnosed cases of carcinoma.Since columnar cell lesions represent a significant precursorfor carcinoma breast, a multidisciplinary modality of approachwill help to detect these lesions much earlier and will proveworthwhil
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As the most widely used narcotics in the world, Cannabis sativa is also regarded as one of the earliest drugs that used by humans. Exploring the origin and early dissemination of C. sativa as medicine can shed light on the safe and effective usages of marijuana-derived drugs and the scientific development of the new medicinal value of C. sativa, which are of important social and ethical significances. Bencao archaeology and herbal textual research are dual evidence for herbalism studies. By integrating the evidence from archaeological remains and references of the early civilizations of the world, this study revealed the medicinal origin of C. sativa and its early expansion, and then in the context of the human cultural background, explored the factors driving the original spread of C. sativa as a medicine in Eurasia. The results showed that the medicinal origin of C. sativa was likely rooted in the original utilization of its psychoactive substance by ancient humans in traditional rituals, by inhaling the smoke from the burning of the psychoactive substance of C. sativa, which was likely to be the original mode of the use of C. sativa as a medicine. Also, based on the existing archaeological remains, the Yamnaya populations from early East Europe (3000 BC) were supposed to be the earliest human beings employing C. sativa for medical purposes. After originating from East Europe, medicinal C. sativa probably dispersed into the West Asia and Central Asia. Afterwards, it has spread into South Asia southward and into North Asia and East Asia northward with the Central Asia as the diffusion center. Indo-European populations were supposed to be the main human beings using the psychoactive substance of C. sativa, and there was a high degree of similarity between the routes of the expansion of the Indo-European language family and the course of early spread of C. sativa. In terms of the above two understandings, we suggested that the dispersal of the Indo-European populations probably have driven the early spread of C. sativa as medicine across Eurasia.
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Tumor spread through air spaces (STAS) as a new pathological invasion mode is closely related to many clinicopathological factors. In lung adenocarcinoma, micropapillary and solid pathological subtypes are most related; STAS for early stage lung adenocarcinoma, surgical type of lobectomy seems to benefit better than sublobar resection, which may up-regulate the pathological stage of early lung cancer; Moreover, STAS is closely related to squamous cell carcinoma and other non-small cell lung cancer (NSCLC). In addition, intraoperative frozen-section pathological detection of STAS is difficult and controversial. STAS as an independent risk factor for tumor recurrence is also an important factor indicating poor prognosis. This paper reviews the research status and progress of STAS. .